Skip to main content

Advertisement

Log in

The Role of Hypnosis in Cancer Care

  • Integrative Care (C Lammersfeld, Section Editor)
  • Published:
Current Oncology Reports Aims and scope Submit manuscript

Abstract

Purpose of Review

This paper reviews the current evidence-base for the use of hypnosis as an adjunct treatment for common cancer-related symptoms and side effects, including those experienced during treatment, as well as long-term and late effects. First, a general description and history of medical hypnosis in cancer care is provided, followed by a review of the latest evidence across a range of common symptoms.

Recent Findings

The evidence suggests that hypnosis may help treat symptoms of nausea and vomiting in breast cancer patients, manage pain in a variety of contexts, and also reduce levels of anxiety and overall distress around surgical and medical procedures, both in children and adults. Emerging research shows promise for treating hot flashes in women with breast cancer.

Summary

The research in this area would benefit from assessing populations beyond women with breast cancer, including late-stage disease, using more rigorous study designs, following published reporting guidelines and better describing and standardizing interventions.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance

  1. • Hammond DC. A review of the history of hypnosis through the late 19th century. Am J Clin Hypn. 2013;56:174–91. https://doi.org/10.1080/00029157.2013.826172 Provides a thorough chronological overview of the history of hypnosis, from earliest recorded uses worldwide, to applications in medicine and psychiatry in Europe and America. Includes detailed contributions of several prominent figures in the history of hypnosis.

    Article  PubMed  Google Scholar 

  2. Upshaw WN. Hypnosis: medicine’s dirty word. Am J Clin Hypn. 2006;49:113–22. https://doi.org/10.1080/00029157.2006.10401563.

    Article  PubMed  Google Scholar 

  3. APA Div. 30: Society of Psychological Hypnosis. About the Society of Psychological Hypnosis. At: http://www.apadivisions.org/division-30/about/index.aspx. 2018. Accessed July 28, 2108.

  4. Peter B. Hypnosis. In: Wright JD, editor. International Encyclopedia of the Social & Behavioral Sciences. Second ed. Oxford: Elsevier; 2015. p. 458–64.

    Chapter  Google Scholar 

  5. • Montgomery GH, Schnur JB, Kravits K. Hypnosis for cancer care: over 200 years young. CA Cancer J Clin. 2012;63:31–44. https://doi.org/10.3322/caac.21165 Provides a detailed overview of the applications of hypnosis to various aspects of cancer care, including cancer-prevention behaviours, diagnostic procedures, cancer treatment, and cancer survivorship.

    Article  PubMed  PubMed Central  Google Scholar 

  6. • Jensen MP, Adachi T, Tomé-Pires C, Lee J, Osman ZJ, Miró J. Mechanisms of hypnosis: toward the development of a biopsychosocial model. Int J Clin Exp Hypn. 2015;63:34–75. https://doi.org/10.1080/00207144.2014.961875 Provides a thorough review of the evidence of all biological, psychological, and social factors studied in relation to hypnosis; provides rationale for a preliminary biopsychosocial conceptualization of hypnosis.

    Article  PubMed  PubMed Central  Google Scholar 

  7. Tefikow S, Barth J, Maichrowitz S, Beelmann A, Strauss B, Rosendahl J. Efficacy of hypnosis in adults undergoing surgery or medical procedures: a meta-analysis of randomized controlled trials. Clin Psychol Rev. 2013;33:623–36. https://doi.org/10.1016/j.cpr.2013.03.005.

    Article  CAS  PubMed  Google Scholar 

  8. Sliwinski J, Fisher W, Johnson A, Elkins G. Medical hypnosis for pain and psychological distress during burn wound debridement: a critical review. OA Altern Med. 2013;1:5.

    Google Scholar 

  9. Landolt AS, Milling LS. The efficacy of hypnosis as an intervention for labor and delivery pain: A comprehensive methodological review. Clin Psychol Rev. 2011;31:1022–31. https://doi.org/10.1016/j.cpr.2011.06.002.

    Article  PubMed  Google Scholar 

  10. Bernardy K, Füber N, Klose P, Häuser W. Efficacy of hypnosis/guided imagery in fibromyalgia syndrome - a systematic review and meta-analysis of controlled trials. BMC Musculoskelet Disord. 2011;12:133. https://doi.org/10.1186/1471-2474-12-133.

    Article  PubMed  PubMed Central  Google Scholar 

  11. Dillworth T, Jensen MP. The role of suggestions in hypnosis for chronic pain: a review of the literature. Open Pain J. 2010;3:39–51.

    Article  Google Scholar 

  12. Palsson OS. Hypnosis treatment of gastrointestinal disorders: a comprehensive review of the empirical evidence. Am J Clin Hypn. 2015;58:134–58. https://doi.org/10.1080/00029157.2015.1039114.

    Article  PubMed  Google Scholar 

  13. Schaefert R, Klose P, Moser G, Häuser W. Efficacy, tolerability, and safety of hypnosis in adult irritable bowel syndrome: systematic review and meta-analysis. Psychosom Med. 2014;76:389–98.

    Article  Google Scholar 

  14. Byron B. The use of hypnosis in the care of the cancer patient. Cancer. 1954;7:1–14 doi: AID-CNCR2820070103>3.0.CO;2–0.

    Article  Google Scholar 

  15. Canadian Cancer Society. Hypnosis (in Cancer Care). At: http://www.cancer.ca/en/cancer-information/diagnosis-and-treatment/complementary-therapies/hypnosis/?region=on. 2018. Accessed July 28, 2018.

  16. van Overbruggen R. Hypnosis—American Cancer Society. At: https://helpforhealth.com/hypnose-coaching-2/hypnosis-american-cancer-society/. 2013. Accessed July 25, 2018.

  17. Shankar A, Roy S, Malik A, Julka PK, Rath GK. Prevention of chemotherapy-induced nausea and vomiting in cancer patients. Asian Pac J Cancer Prev. 2015;16:6207–13.

    Article  Google Scholar 

  18. Mustian KM, Devine K, Ryan JL, Janelsins MC, Sprod LK, Peppone LJ, et al. Treatment of nausea and vomiting during chemotherapy. US Oncol Hematol. 2011;7:91–7.

    PubMed  PubMed Central  Google Scholar 

  19. Enqvist B, Björklund C, Engman M, Jakobsson J. Preoperative hypnosis reduces postoperative vomiting after surgery of the breasts. Acta Anaesthesiol Scand. 1997;41:1028–32. https://doi.org/10.1111/j.1399-6576.1997.tb04831.x.

    Article  CAS  PubMed  Google Scholar 

  20. Richardson J, Smith JE, McCall G, Richardson A, Pilkington K, Kirsch I. Hypnosis for nausea and vomiting in cancer chemotherapy: a systematic review of the research evidence. Eur J Cancer Care (Engl). 2007;16:402–12. https://doi.org/10.1111/j.1365-2354.2006.00736.x.

    Article  CAS  Google Scholar 

  21. Syrjala KL, Cummings C, Donaldson GW. Hypnosis or cognitive behavioral training for the reduction of pain and nausea during cancer treatment: a controlled clinical trial. Pain. 1992;48:137–46. https://doi.org/10.1016/0304-3959(92)90049-H.

    Article  CAS  PubMed  Google Scholar 

  22. • Cramer H, Lauche R, Paul A, Langhorst J, Kümmel S, Dobos GJ. Hypnosis in breast cancer care: a systematic review of randomized controlled trials. Integr Cancer Ther. 2015;14:5–15. https://doi.org/10.1177/1534735414550035 This review is important as it systematically evaluated all published studies in the area up to the year 2014 across a range of outcomes, using standardized methods of comparison.

    Article  PubMed  Google Scholar 

  23. Montgomery GH, Bovbjerg DH, Schnur JB, David D, Goldfarb A, Weltz CR, et al. A randomized clinical trial of a brief hypnosis intervention to control side effects in breast surgery patients. J Natl Cancer Inst. 2007;99:1304–12. https://doi.org/10.1093/jnci/djm106.

    Article  PubMed  Google Scholar 

  24. Montgomery GH, Hallquist MN, Schnur JB, David D, Silverstein JH, Bovbjerg DH. Mediators of a brief hypnosis intervention to control side effects in breast surgery patients: response expectancies and emotional distress. J Consult Clin Psychol. 2010;78:80–8. https://doi.org/10.1037/a0017392.

    Article  PubMed  PubMed Central  Google Scholar 

  25. Lee DL, Robinson PD, Sabrina B, Mark H, Carol P, Paul G, et al. Guideline for the prevention and treatment of anticipatory nausea and vomiting due to chemotherapy in pediatric cancer patients. Pediatr Blood Cancer. 2014;61:1506–12. https://doi.org/10.1002/pbc.25063.

    Article  Google Scholar 

  26. Dupuis LL, Roscoe JA, Olver I, Aapro M, Molassiotis A. 2016 updated MASCC/ESMO consensus recommendations: anticipatory nausea and vomiting in children and adults receiving chemotherapy. Support Care Cancer. 2017;25:317–21. https://doi.org/10.1007/s00520-016-3330-z.

    Article  PubMed  Google Scholar 

  27. Tageja N, Groninger H. Chemotherapy-induced nausea and vomiting: an overview and comparison of three consensus guidelines. Postgrad Med J. 2015;92:34–40. https://doi.org/10.1136/postgradmedj-2014-132969.

    Article  CAS  PubMed  Google Scholar 

  28. Roila F, Molassiotis A, Herrstedt J, Aapro M, Gralla RJ, Bruera E, Clark-Snow RA, Dupuis LL, Einhorn LH, Feyer P, Hesketh PJ, Jordan K, Olver I, Rapoport BL, Roscoe J, Ruhlmann JH, Walsh D, Warr D, van der Wetering M. MASCC and ESMO Consensus Guidelines for the Prevention of Chemotherapy and Radiotherapy-Induced Nausea and Vomiting: ESMO Clinical Practice Guidelines. Ann Oncol. 2016; 27 Suppl 5:v119–v133.

  29. Berlière M, Roelants F, Watremez C, Docquier MA, Piette N, Lamerant S, et al. The advantages of hypnosis intervention on breast cancer surgery and adjuvant therapy. The Breast. 2018;37:114–8. https://doi.org/10.1016/j.breast.2017.10.017.

    Article  PubMed  Google Scholar 

  30. Green CR, Hart-Johnson T, Loeffler DR. Cancer-related chronic pain. Cancer. 2011;117:1994–2003. https://doi.org/10.1002/cncr.25761.

    Article  PubMed  Google Scholar 

  31. van den Beuken-van Everdingen MH, Marieke HJ, Hochstenbach LMJ, Joosten EAJ, Tjan-Heijnen VCG, Janssen DJA. Update on prevalence of pain in patients with cancer: systematic review and meta-analysis. J Pain Symptom Manag. 2016;51:1090.e9. https://doi.org/10.1016/j.jpainsymman.2015.12.340.

    Article  Google Scholar 

  32. Eaton LH, Brant JM, McLeod K, Yeh C. Nonpharmacologic pain interventions: a review of evidence-based practices for reducing chronic cancer pain. Clin J Oncol Nurs. 2017;21:A9–79. https://doi.org/10.1188/17.CJON.S3.54-70.

    Article  Google Scholar 

  33. Jibb LA, Nathan PC, Stevens BJ, Seto E, Cafazzo JA, Stephens N, et al. Psychological and physical interventions for the management of cancer-related pain in pediatric and young adult patients: an integrative review. Oncol Nurs Forum. 2015;42:339–E357. https://doi.org/10.1188/15.onf.e339-e357.

    Article  Google Scholar 

  34. Kuttner L, Bowman M, Teasdale M. Psychological treatment of distress, pain, and anxiety for young children with cancer. J Dev Behav Pediatr. 1988;9:374-81. https://doi.org/10.1097/00004703-198812000-00010.

    Article  PubMed  Google Scholar 

  35. Néron S, Stephenson R. Effectiveness of hypnotherapy with cancer patients’ trajectory: Emesis, acute pain, and analgesia and anxiolysis in procedures. Int J Clin Exp Hypn. 2007;55:336–54. https://doi.org/10.1080/00207140701338647.

    Article  PubMed  Google Scholar 

  36. Syrjala KL, Jensen MP, Mendoza ME, Yi JC, Fisher HM, Keefe FJ. Psychological and behavioral approaches to cancer pain management. J Clin Oncol. 2014;32:1703–11. https://doi.org/10.1200/JCO.2013.54.4825.

    Article  PubMed  PubMed Central  Google Scholar 

  37. Butler LD, Koopman C, Neri E, Giese-Davis J, Palesh O, Thorne-Yocam K, et al. Effects of supportive-expressive group therapy on pain in women with metastatic breast cancer. Health Psychol. 2009;28:579–87. https://doi.org/10.1037/a0016124.

    Article  PubMed  Google Scholar 

  38. Ebell H. The therapist as a travelling companion to the chronically ill: hypnosis and cancer related symptoms. Contemp Hypn. 2008;25:46–56. https://doi.org/10.1002/ch.348.

    Article  Google Scholar 

  39. Spiegel D, Bloom JR. Group therapy and hypnosis reduce metastatic breast carcinoma pain. Psychosom Med. 1983;45:333–9.

    Article  CAS  Google Scholar 

  40. •• Wortzel J, Spiegel D. Hypnosis in cancer care. Am J Clin Hypn. 2017;60:4–17. https://doi.org/10.1080/00029157.2017.1290577 In this recent review article by leading researchers in the field of psycho-oncology, the current neurobiology of hypnotizability and hypnosis is reviewed, along with the methods and results of hypnosis interventions for pain control in acute and chronic settings. Furthermore, the areas of the brain affected by hypnosis-based interventions for pain-management are described, which provides the neuroanatomy and physiology of hypnotic analgesia.

    Article  PubMed  Google Scholar 

  41. • Mendoza ME, Capafons A, Gralow JR, Syrjala KL, Suárez-Rodríguez JM, Fann JR, et al. Randomized controlled trial of the valencia model of waking hypnosis plus CBT for pain, fatigue, and sleep management in patients with cancer and cancer survivors. Psycho-Oncology. 2017;26:1832–8. https://doi.org/10.1002/pon.4232 This study used rigorous methodology, i.e. blinded randomized controlled trial, to determine the effects of a hypnosis technique combined with CBT for managing the symptoms of pain, fatigue, and sleep problems in a mixed sample of cancer patients taking treatments and cancer survivors post-treatment. The results showed the beneficial effects of hypnosis relative to an educational intervention controlling for the effects of time, therapist attention, and participation in a clinical trial, with benefits that were maintained for at least 3 months’ post-intervention, and without any adverse effects.

    Article  CAS  PubMed  Google Scholar 

  42. Erickson MH, Rossi EL. Hypnotherapy. Am J Clin Hypn. 1959;2:3–21.

    Article  Google Scholar 

  43. Gallagher E, Rogers BB, Brant JM. Cancer-related pain assessment: monitoring the effectiveness of interventions. Clin J Oncol Nurs. 2017;21:8–12. https://doi.org/10.1188/17.CJON.S3.8-12.

    Article  PubMed  Google Scholar 

  44. Singh P, Chaturvedi A. Complementary and alternative medicine in cancer pain management: a systematic review. Indian J Palliat Care. 2015;21:105–15. https://doi.org/10.4103/0973-1075.150202.

    Article  PubMed  PubMed Central  Google Scholar 

  45. Subnis UB, Starkweather A, Menzies V. A current review of distraction-based interventions for chronic pain management. Eur J Intern Med. 2016;8:715–22. https://doi.org/10.1016/j.eujim.2016.08.162.

    Article  Google Scholar 

  46. Carlson LE, Waller A, Groff SL, Janine G-D, Bultz BD. What goes up does not always come down: patterns of distress, physical and psychosocial morbidity in people with cancer over a one year period. Psycho-Oncology. 2013;22:168–76. https://doi.org/10.1002/pon.2068.

    Article  PubMed  Google Scholar 

  47. Michael N, Dominic M, Tamsin F, Morwenna R, Christine C, Stuart L, et al. Effectiveness of nonpharmacological interventions to reduce procedural anxiety in children and adolescents undergoing treatment for cancer: a systematic review and meta-analysis. Psycho-Oncology. 2018;Prepublished Online:1–11;27:1889–99. https://doi.org/10.1002/pon.4749.

    Article  Google Scholar 

  48. •• Pei-Ying C, Ying-Mei L, Mei-Ling C. The effect of hypnosis on anxiety in patients with cancer: a meta-analysis. Worldviews Evid-Based Nurs. 2017;14:223–36. https://doi.org/10.1111/wvn.12215 This is a comprehensive meta-analysis evaluating studies that have used hypnosis to treat anxiety among both pediatric and adult cancer patients. They have thoroughly synthesized and evaluated recent literature regarding the topic.

    Article  Google Scholar 

  49. Kellerman J, Zeltzer L, Ellenberg L, Dash J. Adolescents with cancer: hypnosis for the reduction of the acute pain and anxiety associated with medical procedures. J Adolesc Health Care. 1983;4:85–90. https://doi.org/10.1016/S0197-0070(83)80024-2.

    Article  CAS  PubMed  Google Scholar 

  50. Liossi C, White P, Hatira P. A randomized clinical trial of a brief hypnosis intervention to control venepuncture-related pain of paediatric cancer patients. Pain®. 2009;142:255–63. https://doi.org/10.1016/j.pain.2009.01.017.

    Article  Google Scholar 

  51. Landier W, Tse AM. Use of complementary and alternative medical interventions for the management of procedure-related pain, anxiety, and distress in pediatric oncology: an integrative review. J Pediatr Nurs. 2010;25:566–79. https://doi.org/10.1016/j.pedn.2010.01.009.

    Article  PubMed  PubMed Central  Google Scholar 

  52. • Bragard I, Etienne A, Faymonville M, Coucke P, Lifrange E, Schroeder H, et al. A nonrandomized comparison study of self-hypnosis, yoga, and cognitive-behavioral therapy to reduce emotional distress in breast cancer patients. Int J Clin Exp Hypn. 2017;65:189–209. https://doi.org/10.1080/00207144.2017.1276363 This study conducted a comparison study of self-hypnosis to yoga and CBT, examining effects on distress and patient well-being. It is noteworthy for comparing three active interventions in a pragmatic design, but suffers from lack of randomization and unequal group sizes.

    Article  PubMed  Google Scholar 

  53. Potie A, Roelants F, Pospiech A, Momeni M, Watremez C. Hypnosis in the perioperative management of breast cancer surgery: clinical benefits and potential implications. Anesthesiol Res Pract. 2016;2016:1–8. https://doi.org/10.1155/2016/2942416.

    Article  Google Scholar 

  54. Grégoire C, Bragard I, Jerusalem G, Etienne A, Coucke P, Dupuis G, et al. Group interventions to reduce emotional distress and fatigue in breast cancer patients: a 9-month follow-up pragmatic trial. Br J Cancer. 2017;117:1442–9. https://doi.org/10.1038/bjc.2017.326.

    Article  PubMed  PubMed Central  Google Scholar 

  55. •• Grégoire C, Nicolas H, Bragard I, Delevallez F, Merckaert I, Razavi D, et al. Efficacy of a hypnosis-based intervention to improve well-being during cancer: a comparison between prostate and breast cancer patients. BMC Cancer. 2018;18:677. https://doi.org/10.1186/s12885-018-4607-z This study demonstrates the importance of 1) standardizing interventions so comparisons can be made across groups (and, beyond this publication, across studies) and 2) testing interventions in multiple groups of patients as there may be heterogeneity in patients’ responses.

    Article  PubMed  PubMed Central  Google Scholar 

  56. Tao W, Tao X, Song C. Effects of non-pharmacological supportive care for hot flushes in breast cancer: a meta-analysis. Support Care Cancer. 2017;25:2335–47. https://doi.org/10.1007/s00520-017-3691-y.

    Article  PubMed  Google Scholar 

  57. Elkins G, Fisher W, Johnson A, Marcus J, Dove J, Perfect M, et al. Moderating effect of hypnotizability on hypnosis for hot flashes in breast cancer survivors. Contemp Hypn Integr Ther. 2011;28:187–95.

    PubMed  PubMed Central  Google Scholar 

  58. Savard M, Savard J, Quesnel C, Ivers H. The influence of breast cancer treatment on the occurrence of hot flashes. J Pain Symptom Manag. 2009;37:687–97. https://doi.org/10.1016/j.jpainsymman.2008.04.010.

    Article  Google Scholar 

  59. MacLaughlan David S, Salzillo S, Bowe P, Scuncio S, Malit B, Raker C, et al. Randomised controlled trial comparing hypnotherapy versus gabapentin for the treatment of hot flashes in breast cancer survivors: a pilot study. BMJ Open. 2013;3:e003138. https://doi.org/10.1136/bmjopen-2013-003138.

    Article  PubMed  PubMed Central  Google Scholar 

  60. Gonzalez BD, Small BJ, Cases MG, Williams NL, Fishman MN, Jacobsen PB, et al. Sleep disturbance in men receiving androgen deprivation therapy for prostate cancer: the role of hot flashes and nocturia. Cancer. 2018;124:499–506. https://doi.org/10.1002/cncr.31024.

    Article  CAS  PubMed  Google Scholar 

  61. Montgomery GH, Sucala M, Baum T, Schnur JB. Hypnosis for symptom control in cancer patients at the end-of-life: a systematic review. Int J Clin Exp Hypn. 2017;65:296–307. https://doi.org/10.1080/00207144.2017.1314728.

    Article  PubMed  PubMed Central  Google Scholar 

  62. Häuser W, Hagl M, Schmierer A, Hansen E. The efficacy, safety and applications of medical hypnosis: a systematic review of meta-analyses. Dtsch Arztebl Int. 2016;113:289–96. https://doi.org/10.3238/arztebl.2016.0289.

    Article  PubMed  PubMed Central  Google Scholar 

  63. Elkins G, Jensen MP, Patterson DR. Hypnotherapy for the management of chronic pain. Int J Clin Exp Hypn. 2007;55:275–87. https://doi.org/10.1080/00207140701338621.

    Article  PubMed  PubMed Central  Google Scholar 

  64. Moher D, Hopewell S, Schulz KF, Montori V, Gøtzsche PC, Devereaux PJ, et al. CONSORT 2010 explanation and elaboration: updated guidelines for reporting parallel group randomised trials. Int J Surg. 2012;10:28–55. https://doi.org/10.1016/j.ijsu.2011.10.001.

    Article  PubMed  Google Scholar 

  65. Montgomery GH, David D, Kangas M, Green S, Sucala M, Bovbjerg DH, et al. Randomized controlled trial of a cognitive-behavioral therapy plus hypnosis intervention to control fatigue in patients undergoing radiotherapy for breast cancer. J Clin Oncol. 2014;32:557–63. https://doi.org/10.1200/JCO.2013.49.3437.

    Article  PubMed  PubMed Central  Google Scholar 

Download references

Funding

Dr. Carlson holds the Enbridge Research Chair in Psychosocial Oncology, co-funded by the Canadian Cancer Society Alberta/NWT Division and the Alberta Cancer Foundation, and a Canadian Institutes of Health Research (CIHR) Strategy for Patient-Oriented Research (SPOR) Innovative Clinical Trials Mentorship Chair which funds the TRACTION (Training in Research and Clinical Trials in Integrative Oncology) program. Dr. Subnis is supported by the Enbridge Research Chair in Psychosocial Oncology. Dr. Subnis, Kirsti Toivonen, Michelle Flynn, and Julie Deelmans are supported in part by the CIHR SPOR TRACTION program. Kirsti Toivonen receives funding from a Canadian Institutes of Health Research Doctoral Award and an Izaak Walton Killam Pre-Doctoral Scholarship. Michelle Flynn receives funding from a Canadian Institutes of Health Research Masters Award.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Linda E. Carlson.

Ethics declarations

Conflict of Interest

Linda E. Carlson, Kirsti Toivonen, Michelle Flynn, Julie Deleemans, Katherine-Anne Piedalue, Emma Tolsdorf, and Utkarsh Subnis declare they have no conflict of interest.

Human and Animal Rights and Informed Consent

This article does not contain any studies with human or animal subjects performed by any of the authors.

Additional information

This article is part of the Topical Collection on Integrative Care

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Carlson, L.E., Toivonen, K., Flynn, M. et al. The Role of Hypnosis in Cancer Care. Curr Oncol Rep 20, 93 (2018). https://doi.org/10.1007/s11912-018-0739-1

Download citation

  • Published:

  • DOI: https://doi.org/10.1007/s11912-018-0739-1

Keywords

Navigation