Abstract
Left ventricular assist devices (LVAD) are surgically implanted as a treatment option for advanced heart failure but are not without complications. While the previous chapter discusses complications related to LVADs, this chapter will focus on infectious concerns. Prevalence of infection in durable LVADs occurs in up to 60% of recipients with driveline exit site (DLES) infections being most common (Raymond et al., ASAIO J 56:57–60, 2010; Goldstein et al., J Heart Lung Transplant 31:1151–7, 2012). Many factors contribute to infectious issues such as implantation technique, device choice, patient selection, comorbidities, duration of the device in use, and changes in pump design over time. Infections are costly and lead to readmissions, longer hospital stays, the need for long-term antibiotics, possibly surgery, stroke, and death (Simon et al., Clin Infect Dis 40:1108–15, 2005; Martin et al., Interact Cardiovasc Thorac Surg 11:20–3, 2010). Patients with device infection carry a 70% risk of 1-year mortality (Topkara et al., Ann Thorac Surg 90:1270–77, 2010). Infectious workup is part of patient selection and comorbidity risk factors should be considered such as poor nutrition, obesity, diabetes mellitus, chronic kidney disease, younger age, or poor dentition with periodontitis and abscesses (Raymond et al., ASAIO J 56:57–60, 2010; Goldstein et al., J Heart Lung Transplant 31:1151–7, 2012; Martin et al., Interact Cardiovasc Thorac Surg 11:20–3, 2010; Kamdar et al., J Heart Lung Transplant 31:S19–20, 2012) (see Table 2).
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Kusne S, Mooney M, Danziger-Isakov L, et al. An ISHLT consensus document for prevention and management strategies for mechanical circulatory support infection. J Heart Lung Transplant. 2017;36(10):1137–53. https://doi.org/10.1016/j.healun.2017.06.007. Epub 2017 Jun 23.
Aslam S, Xie R, Cowger J, Kirklin J, Schueler S, de By T, et al. Bloodstream infections in mechanical circulatory support device recipients in the International Society of Heart and Lung Transplantation Mechanically Assisted Circulation Support Registry: epidemiology, risk factors and mortality. J Heart Lung Transplant. 2018;37(8):1013–20.
Aslam S. Ventricular assist device infections. Cardiol Clin. 2018;36(4):507–17. https://doi.org/10.1016/j.ccl.2018.06.005. Epub 2018 Sept 15.
Mourad A, Arif S, Bishawi M, Milano C, Miller RA, Maskarinec SA. Surgical infection prophylaxis prior to left ventricular assist device implantation: a survey of clinical practice. J Card Surg. 2020;35(10):2672–8. https://doi.org/10.1111/jocs.14882. Epub 2020 Jul 17.
Zinoviev R, Lippincott CK, Keller SC, Gilotra NA. In full flow: left ventricular assist device infections in the modern era. Open Forum Infect Dis. 2020;7(5):ofaa124. https://doi.org/10.1093/ofid/ofaa124.
Topkara VK, Kondrareddy S, Malik F, et al. Infectious complications in patients with left ventricular assist device: etiology and outcomes in the continuous-flow era. Ann Thorac Surg. 2010;90:1270–7.
Sharma V, Deo SV, Stulak JM, Durham LA 3rd, Daly RC, Park SJ, Baddour LM, Mehra K, Joyce LD. Driveline infections in left ventricular assist devices: implications for destination therapy. Ann Thorac Surg. 2012;94(5):1381–6. Epub 2012 Jul 20.
Chen W, Dilsizian V. Diagnosis and image-guided therapy of cardiac left ventricular assist device infections. Semin Nucl Med. 2020. pii: S0001-2998(20)30122-7. https://doi.org/10.1053/j.semnuclmed.2020.11.002. Epub ahead of print.
Nienaber JJ, Kusne S, Riaz T, et al., Mayo Cardiovascular Infections Study Group. Clinical manifestations and management of left ventricular assist device-associated infections. Clin Infect Dis. 2013;57:1438–48.
Siméon S, Flécher E, Revest M, et al. Left ventricular assist device-related infections: a multicentric study. Clin Microbiol Infect. 2017;23:748–51.
Tong MZ, Smedira NG, Soltesz EG, et al. Outcomes of heart transplant after left ventricular assist device specific and related infection. Ann Thorac Surg. 2015;100:1292–7.
Gordon RJ, Weinberg AD, Pagani FD, et al., Ventricular Assist Device Infection Study Group. Prospective, multicenter study of ventricular assist device infections. Circulation. 2013;127:661–702.
Goldstein DJ, Naftel D, Holman W, et al. Continuous-flow devices and percutaneous site infections: clinical outcomes. J Heart Lung Transplant. 2012;31(11):1151–7. https://doi.org/10.1016/j.healun.2012.05.004. Epub 2012 Jul 4.
Leuck AM. Left ventricular assist device driveline infections: recent advances and future goals. J Thorac Dis. 2015;7(12):2151–7. https://doi.org/10.3978/j.issn.2072-1439.2015.11.06.
O’Horo JC, Abu Saleh OM, Stulak JM, Wilhelm MP, Baddour LM, Rizwan Sohail M. Left ventricular assist device infections: a systematic review. ASAIO J. 2018;64(3):287–94. https://doi.org/10.1097/MAT.0000000000000684. PMID: 29095732; PMCID: PMC5920737.
Martin SI, Wellington L, Stevenson KB, et al. Effect of body mass index and device type on infection in left ventricular assist device support beyond 30 days. Interact Cardiovasc Thorac Surg. 2010;11(1):20–3.
Hernandez GA, Breton JDN, Chaparro SV. Driveline infection in ventricular assist devices and its implication in the present era of destination therapy. Open J Cardiovasc Surg. 2017;9:1179065217714216. https://doi.org/10.1177/1179065217714216.
John R, Aaronson KD, Pae WE, Acker MA, et al., HeartWare Bridge to Transplant ADVANCE Trial Investigators. Drive-line infections and sepsis in patients receiving the HVAD system as a left ventricular assist device. J Heart Lung Transplant 2014;33(10):1066–1073. https://doi.org/10.1016/j.healun.2014.05.010. Epub 2014 Jun 4.
Mehra MR, Goldstein DJ, Uriel N, et al. Two-year outcomes with a magnetically levitated cardiac pump in heart failure. N Engl J Med. 2018;378:1386–95.
Mehra MR, Uriel N, Naka Y, et al. A fully magnetically levitated left ventricular assist device—final report. N Engl J Med. 2019;380:1618–27.
Patel CB, Blue L, Cagliostro B, et al. Left ventricular assist systems and infection-related outcomes: a comprehensive analysis of the MOMENTUM 3 trial. J Heart Lung Transplant. 2020;39:774–81.
Raymond AL, Kfoury AG, Bishop CJ, et al. Obesity and left ventricular assist device driveline exit site infection. ASAIO J. 2010;56:57–60.
Patel S, Choi JH, Moncho Escrivá E, Rizvi SSA, Maynes EJ, Samuels LE, Luc JGY, Morris RJ, Massey HT, Tchantchaleishvili V, Aburjania N. Single versus multi-drug antimicrobial surgical infection prophylaxis for left ventricular assist devices: a systematic review and meta-analysis. Artif Organs. 2019;43(7):E124–38. https://doi.org/10.1111/aor.13441. Epub 2019 Mar 22.
Kamdar F, Eckman P, Goldstein D, et al. 31 Pump-related infections (PRI) after implantation of continuous-flow left ventricular devices (CF LVADs): analysis of 2900 patients from the Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS). J Heart Lung Transplant. 2012;31:S19–20.
Feldman D, Pamboukian SV, et al. The 2013 International Society for Heart and Lung Transplantation guidelines for mechanical circulatory support: executive summary. J Heart Lung Transplant. 2013;32(2):157–87. ISSN: 1053-2498
Bernhardt AM, Schlöglhofer T, Lauenroth V, et al., Driveline Expert Staging and Care DESTINE Study Group, Ventricular Assist Device Driveline Infection Study Group. Prevention and early treatment of driveline infections in ventricular assist device patients—the DESTINE staging proposal and the first standard of care protocol. J Crit Care. 2020;56:106–12. https://doi.org/10.1016/j.jcrc.2019.12.014. Epub 2019 Dec 17.
Cross HH. Obtaining a wound swab culture specimen. Nursing. 2014;44(7):68–9. https://doi.org/10.1097/01.NURSE.0000446645.33489.2e.
Kirklin JK, Pagani FD, Goldstein DJ, John R, et al. American Association for Thoracic Surgery/International Society for Heart and Lung Transplantation guidelines on selected topics in mechanical circulatory support. J Thorac Cardiovasc Surg. 2020;159(3):865–96. https://doi.org/10.1016/j.jtcvs.2019.12.021. Epub 2020 Jan 23.
Pereda D, Conte JV. Left ventricular assist device driveline infections. Cardiol Clin. 2011;29(4):515–27.
Slaughter MS, Pagani FD, Rogers JG, et al. Clinical management of continuous flow left ventricular assist devices in advanced heart failure. J Heart Lung Transplant. 2010;29(Suppl):S1–39.
Toda K, Sawa Y. Clinical management for complications related to implantable LVAD use. Gen Thorac Cardiovasc Surg. 2015;63(1):1–7. https://doi.org/10.1007/s11748-014-0480-0. Epub 2014 Nov 5.
Asaki SY, Dean McKenzie E, Elias B, Adachi I. Rectus-sparing technique for driveline insertion of ventricular assist device. Ann Thorac Surg. 2015;100:1920–2.
Qu Y, McGiffin D, Kure C, Ozcelik B, Fraser J, Thissen H, Peleg AY. Biofilm formation and migration on ventricular assist device drivelines. J Thorac Cardiovasc Surg. 2020;159(2):491–502.e2. https://doi.org/10.1016/j.jtcvs.2019.02.088. Epub 2019 Mar 6.
Dean D, Kallel F, Ewald GA, Tatooles A, et al., SSI Registry Investigators. Reduction in driveline infection rates: results from the HeartMate II Multicenter Driveline Silicone Skin Interface (SSI) Registry. J Heart Lung Transplant. 2015;34(6):781–9. https://doi.org/10.1016/j.healun.2014.11.021. Epub 2014 Dec 5.
Yarboro LT, Bergin JD, Kennedy JL, et al. Technique for minimizing and treating driveline infection. Ann Cardiothorac Surg. 2014;3:557–62.
Son AY, Stein LH, DeAnda A, et al. Impact of chlorhexidine gluconate intolerance on driveline infections during chronic HeartMate II left ventricular assist device support. Int J Artif Organs. 2017;39:570–4.
Banwell H. What is the evidence for tissue regeneration impairment when using a formulation of PVP-I antiseptic on open wounds? Dermatology. 2006;212(Suppl 1):66–76. https://doi.org/10.1159/000089202.
Cagliostro B, Levin AP, Parkis G, et al. Reduction of drive line infection in continuous flow assist devices: use of standard kit including silver dressing and anchoring device. J Heart Lung Transplant. 2016;35:108–14. https://doi.org/10.1016/j.healun.2015.06.010.
Selekof J, Lindsay M. Left ventricular assist devices: an innovative approach to decrease infections using a silver contact dressing. J Wound Ostomy Continence Nurs. 2009;36(3S):s12.
Stahovich M, Sundareswaran KS, Fox S, et al. Reduce driveline trauma through stabilization and exit site management: 30 days feasibility results from the multicenter RESIST study. ASAIO J. 2016;62(3):240–5. https://doi.org/10.1097/MAT.0000000000000374.
Baronetto A, Centofanti P, Attisani M, et al. A simple device to secure ventricular assist device driveline and prevent exit-site infection. Interact Cardiovasc Thorac Surg. 2014;18(4):415–7. https://doi.org/10.1093/icvts/ivt549.
Shapiro JM, Bond EL, Garman JK. Use of a chlorhexidine dressing to reduce microbial colonization of epidural catheters. Anesthesiology. 1990;73:625–31.
Evans AC, Wright GA, McCandless SP, et al. Ultraviolet radiation affects Thoratec HeartMate II driveline mechanical properties: a pilot experiment. ASAIO J. 2015;61:731–3.
Iseler J, Hadzic KG. Developing a kit and video to standardize changes of the left ventricular assist device dressings. Prog Transplant. 2015;25(3):224–9.
Richards N, Anderson L, Ballew C, et al. ICCAC best practice consensus guidelines: driveline management reference document.
Wus L, Manning M, Entwistle JW. Left ventricular assist device driveline infection and the frequency of dressing change in hospitalized patients. Heart Lung. 2015;44(3):225–9.
Kusne S, Danzigner-Isakov L, Mooney M. Infection control and prevention practices for mechanical circulatory support: an international survey. J Heart Lung Transplant. 2013;32:484.
Cannon A, Elliott T, Ballwe C, et al. Variability in infection control measures for the percutaneous lead among programs implanting long-term ventricular assist devices in the United States. Prog Transplant. 2012;22:351–9.
Dayton P, Feilmeier M, Sedberry S. Does postoperative showering or bathing of a surgical site increase the incidence of infection? A systematic review of the literature. J Foot Ankle Surg. 2013;52:612–4.
Aburjania N, Sherazi S, Tchantchaleishvili V, Alexis JD, Hay CM. Stopping conventional showering decreases Pseudomonas infections in left ventricular assist device patients. Int J Artif Organs. 2017;40(6):282–5. https://doi.org/10.5301/ijao.5000590. Epub 2017 Apr 18.
Hannan MM, et al. Working formulation for the standardization of definitions of infections in patients using ventricular assist devices. J Heart Lung Transplant. 2011;30(4):375–84.
Kretlow JD, Brown RH, Wolfswinkel EM, Xue AS, Hollier LH Jr, Ho JK, Mallidi HR, Gregoric ID, Frazier OH, Izaddoost SA. Salvage of infected left ventricular assist device with antibiotic beads. Plast Reconstr Surg. 2014;133(1):28e–38e. https://doi.org/10.1097/01.prs.0000436837.03819.3f.
Olmsted RZ, Critsinelis A, Kurihara C, Kawabori M, Sugiura T, Civitello AB, Morgan JA. Severe LVAD-related infections requiring surgical treatment: incidence, predictors, effect on survival, and impact of device selection. J Card Surg. 2019;34:82–91.
Levy DT, Guo Y, Simkins J, Puius YA, Muggia VA, Goldstein DJ, D’Alessandro DA, Minamoto GY. Left ventricular assist device exchange for persistent infection: a case series and review of the literature. Transpl Infect Dis. 2014;16(3):453–60. https://doi.org/10.1111/tid.12207. Epub 2014 Apr 7.
Haddad E, Lescure F-X, Ghodhbane W, Lepage L, D’Humieres C, Vindrios W, Kirsch M. Left ventricular assist pump pocket infection: conservative treatment strategy for destination therapy candidates. Int J Artif Organs. 2017;40(3):90–5.
Kimura M, Nishimura T, Kinoshita O, Okada S, Inafuku H, Kyo S, Ono M. Successful treatment of pump pocket infection after left ventricular assist device implantation by negative pressure wound therapy and omental transposition. Ann Thorac Cardiovasc Surg. 2014;20(Suppl):842–5. https://doi.org/10.5761/atcs.cr.12.02192. Epub 2013 Mar 26.
Moazami N, Milano CA, John R, Sun B, Adamson RM, Pagani FD, Smedira N, Slaughter MS, Farrar DJ, Frazier OH, HeartMate II Investigators. Pump replacement for left ventricular assist device failure can be done safely and is associated with low mortality. Ann Thorac Surg. 2013;95(2):500–5. https://doi.org/10.1016/j.athoracsur.2012.09.011. Epub 2012 Dec 20.
Chamogeorgakis T, Koval CE, Smedira NG, Starling RC, Gonzalez-Stawinski GV. Outcomes associated with surgical management of infections related to the HeartMate II left ventricular assist device: implications for destination therapy patients. J Heart Lung Transplant. 2012;31(8):904–6. https://doi.org/10.1016/j.healun.2012.05.006.
Yost G, Coyle L, Gallagher C, Cotts W, Pappas P, Tatooles A. Outcomes following left ventricular assist device exchange: focus on the impacts of device infection. ASAIO J. 2020; https://doi.org/10.1097/MAT.0000000000001287. Epub ahead of print.
Jacoby A, Stranix JT, Cohen O, Louie E, Balsam LB, Levine JP. Flap coverage for the treatment of exposed left ventricular assist device (LVAD) hardware and intractable LVAD infections. J Card Surg. 2017;32(11):732–7. https://doi.org/10.1111/jocs.13230. Epub 2017 Nov 3.
van Valen R, Zuijdendorp HM, Birim Ö, Brugts JJ, Bogers AJJC. Challenges in destination LVAD therapy, management of mediastinitis and device infection, a case report. Heart Lung Circ. 2018;27(3):e7–e10. https://doi.org/10.1016/j.hlc.2017.06.720. Epub 2017 Jul 8.
Hodson T, West JM, Poteet SJ, Lee PH, Valerio IL. Instillation negative pressure wound therapy: a role for infected LVAD salvage. Adv Wound Care (New Rochelle). 2019;8(3):118–24. https://doi.org/10.1089/wound.2018.0832. Epub 2019 Mar 5.
Tahir S, Malone M, Hu H, Deva A, Vickery K. The effect of negative pressure wound therapy with and without instillation on mature biofilms in vitro. Materials (Basel). 2018;11(5):811. https://doi.org/10.3390/ma11050811.
Carr C, Jacob J, Soon P, Karon BL, Williamson EE, Araoz PL. CT of left ventricular assist devices. Radiographics. 2010;30(2):429–45.
Litzer PY, Manrique A, Etienne M, Salles A, Edet-Sanson A, Vera P, Bessou JP, Hitzel A. Leukocyte SPECT/CT for detecting infection of left-ventricular-assist devices: preliminary results. J Nucl Med. 2010;51(7):1044–8. https://doi.org/10.2967/jnumed.109.070664. Epub 2010 Jun 16.
Tlili G, Picard F, Pinaquy JB, Domingues-Dos-Santos P, Bordenave L. The usefulness of FDG PET/CT imaging in suspicion of LVAD infection. J Nucl Cardiol. 2014;21(4):845–8. https://doi.org/10.1007/s12350-014-9872-x. Epub 2014 Feb 27.
Bar-Shalom R, Yefremov N, Guralnik L, Keidar Z, Engel A, Nitecki S, Israel O. SPECT/CT using 67Ga and 111In-labeled leukocyte scintigraphy for diagnosis of infection. J Nucl Med. 2006;47(4):587–94.
Chen W, Kim J, Molchanova-Cook OP, Dilsizian V. The potential of FDG PET/CT for early diagnosis of cardiac device and prosthetic valve infection before morphologic damages ensue. Curr Cardiol Rep. 2014;16(3):459. https://doi.org/10.1007/s11886-013-0459-y.
Chen W, Sajadi MM, Dilsizian V. Merits of FDG PET/CT and functional molecular imaging over anatomic imaging with echocardiography and CT angiography for the diagnosis of cardiac device infections. JACC Cardiovasc Imaging. 2018;11(11):1679–91. https://doi.org/10.1016/j.jcmg.2018.08.026.
Kim J, Feller ED, Chen W, Liang Y. FDG PET/CT for early detection and localization of left ventricular assist device infection. JACC Cardiovasc Imaging. 2019;12(4):722–9.
Tam MC, Patel VN, Weinberg RL, Hulten EA, Aaronson KD, Pagani FD, Corbett JR, Murthy VL. Diagnostic accuracy of FDG PET/CT in suspected LVAD infections: a case series, systematic review, and meta-analysis. JACC Cardiovasc Imaging. 2020;13(5):1191–202. https://doi.org/10.1016/j.jcmg.2019.04.024. Epub 2019 Jul 17.
Ten Hove D, Treglia G, Slart RHJA, Damman K, Wouthuyzen-Bakker M, Postma DF, Gheysens O, Borra RJH, Mecozzi G, van Geel PP, Sinha B, Glaudemans AWJM. The value of 18F-FDG PET/CT for the diagnosis of device-related infections in patients with a left ventricular assist device: a systematic review and meta-analysis. Eur J Nucl Med Mol Imaging. 2021;48(1):241–53. https://doi.org/10.1007/s00259-020-04930-8. Epub 2020 Jun 27.
Sommerlath Sohns JM, Kröhn H, Schöde A, Derlin T, Haverich A, Schmitto JD, Bengel FM. 18F-FDG PET/CT in left-ventricular assist device infection: initial results supporting the usefulness of image-guided therapy. J Nucl Med. 2020;61(7):971–6. https://doi.org/10.2967/jnumed.119.237628. Epub 2019 Dec 5.
Kanjanahattakij N, Horn B, Abdulhadi B, Wongjarupong N, Mezue K, Rattanawong P. Blood stream infection is associated with cerebrovascular accident in patients with left ventricular assist device: a systematic review and meta-analysis. J Artif Organs. 2018;21(3):271–7. https://doi.org/10.1007/s10047-018-1034-5. Epub 2018 Mar 16.
Forest SJ, Bello R, Friedmann P, Casazza D, Nucci C, Shin JJ, D’Alessandro D, Stevens G, Goldstein DJ. Readmissions after ventricular assist device: etiologies, patterns, and days out of hospital. Ann Thorac Surg. 2013;95(4):1276–81. https://doi.org/10.1016/j.athoracsur.2012.12.039. Epub 2013 Mar 5.
Esquer Garrigos Z, Castillo Almeida NE, Gurram P, Vijayvargiya P, Corsini Campioli CG, Stulak JM, Rizza SA, Baddour LM, Rizwan Sohail M. Management and outcome of left ventricular assist device infections in patients undergoing cardiac transplantation. Open Forum Infect Dis. 2020;7(8):ofaa303. https://doi.org/10.1093/ofid/ofaa303.
Monkowski DH, Axelrod P, Fekete T, Hollander T, Furukawa S, Samuel R. Infections associated with ventricular assist devices: epidemiology and effect on prognosis after transplantation. Transpl Infect Dis. 2007;9(2):114–20. https://doi.org/10.1111/j.1399-3062.2006.00185.x.
Cho S-M, Hassett C, Rice C, Starling R, Katzan I, Uching K. What causes LVAD-associated ischemic stroke? Surgery, pump thrombosis, antithrombotics, and infection. ASAIO J. 2019;65:775–80.
Aggarwal A, Gupta A, Kumar S, Baumblatt JA, Pauwaa S, Gallagher C, Treitman A, Pappas P, Tatooles A, Bhat G. Are blood stream infections associated with an increased risk of hemorrhagic stroke in patients with a left ventricular assist device? ASAIO J. 2012;58(5):509–13. https://doi.org/10.1097/MAT.0b013e318260c6a6.
Moayedi Y, et al. Outcomes of patients with infection related to a ventricular assist device after heart transplantation. Clin Transplant. 2019;33:1–6.
Simon D, Fischer S, Grossman A, Downer C, Hota B, Heroux A, Trenholme G. Left ventricular assist device-related infection: treatment and outcome. Clin Infect Dis. 2005;40(8):1108–15. https://doi.org/10.1086/428728. Epub 2005 Mar 11.
Poston RS, Husain S, Sorce D, Stanford E, Kusne S, Wagener M, Griffith BP, Kormos RL. LVAD bloodstream infections: therapeutic rationale for transplantation after LVAD infection. J Heart Lung Transplant. 2003;22(8):914–21. https://doi.org/10.1016/s1053-2498(02)00645-9.
Lerman DT, Hamilton KW, Byrne D, Lee DF, Zeitler K, Claridge T, Gray J, Minamoto GY. The impact of infection among left ventricular assist device recipients on post-transplantation outcomes: a retrospective review. Transpl Infect Dis. 2018;20(6):e12995. https://doi.org/10.1111/tid.12995. Epub 2018 Oct 10.
Chahal D, Sepehry AA, Nazzari H, Wright AJ, Toma M. The impact of left ventricular assist device infections on postcardiac transplant outcomes: a systematic review and meta-analysis. ASAIO J. 2019;65(8):827–36. https://doi.org/10.1097/MAT.0000000000000921.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this chapter
Cite this chapter
Stahovich, M., Marz, K., Nowaczyk, J. (2022). Infectious Concerns and Prevention for Patients with Ventricular Assist Devices. In: Stewart, S., Blood, P. (eds) A Guide to Mechanical Circulatory Support. Springer, Cham. https://doi.org/10.1007/978-3-031-05713-7_8
Download citation
DOI: https://doi.org/10.1007/978-3-031-05713-7_8
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-05712-0
Online ISBN: 978-3-031-05713-7
eBook Packages: MedicineMedicine (R0)