Maki T, Shiratori T, Hatafuku T, Sugawara K. Pylorus-preserving gastrectomy as an improved operation for gastric ulcer. Surgery. 1967;61:838–45.
Japanese gastric cancer treatment guidelines 2010 (ver. 3). Gastric Cancer. 2011;14:113–23.
Nunobe S, Sasako M, Saka M, Fukagawa T, Katai H, Sano T. Symptom evaluation of long-term postoperative outcomes after pylorus-preserving gastrectomy for early gastric cancer. Gastric Cancer. 2007;10:167–72.
Park do J, Lee HJ, Jung HC, Kim WH, Lee KU, Yang HK. Clinical outcome of pylorus-preserving gastrectomy in gastric cancer in comparison with conventional distal gastrectomy with Billroth I anastomosis. World J Surg. 2008;32:1029–36.
Shibata C, Shiiba KI, Funayama Y, et al. Outcomes after pylorus-preserving gastrectomy for early gastric cancer: a prospective multicenter trial. World J Surg. 2004;28:857–61.
Kong SH, Kim JW, Lee HJ, Kim WH, Lee KU, Yang HK. The safety of the dissection of lymph node stations 5 and 6 in pylorus-preserving gastrectomy. Ann Surg Oncol. 2009;16:3252–8.
Morita S, Katai H, Saka M, Fukagawa T, Sano T, Sasako M. Outcome of pylorus-preserving gastrectomy for early gastric cancer. Br J Surg. 2008;95:1131–5.
Ikeguchi M, Hatada T, Yamamoto M, et al. Evaluation of a pylorus-preserving gastrectomy for patients preoperatively diagnosed with early gastric cancer located in the middle third of the stomach. Surg Today. 2010;40:228–33.
Nitti D, Marchet A, Olivieri M, et al. Ratio between metastatic and examined lymph nodes is an independent prognostic factor after D2 resection for gastric cancer: analysis of a large European monoinstitutional experience. Ann Surg Oncol. 2003;10:1077–85.
Catalano V, Labianca R, Beretta GD, Gatta G, de Braud F, Van Cutsem E. Gastric cancer. Crit Rev Oncol Hematol. 2009;71:127–64.
Edge SB, American Joint Committee on Cancer. AJCC cancer staging manual. 7th edition. New York: Springer; 2010.
Aaltonen LA, Hamilton SR, World Health Organization, International Agency for Research on Cancer. Pathology and genetics of tumours of the digestive system. Oxford: IARC; 2000.
Arigami T, Uenosono Y, Yanagita S, et al. Clinical significance of lymph node micrometastasis in gastric cancer. Ann Surg Oncol. 2013;20:515–21.
Japanese classification of gastric carcinoma: 3rd English edition. Gastric Cancer. 2011;14:101–12.
Rosai J, Ackerman LV. Rosai and Ackerman’s surgical pathology. 10th edition. New York: Mosby; 2011.
Cai J, Ikeguchi M, Maeta M, Kaibara N. Micrometastasis in lymph nodes and microinvasion of the muscularis propria in primary lesions of submucosal gastric cancer. Surgery. 2000;127:32–9.
Maehara Y, Oshiro T, Endo K, et al. Clinical significance of occult micrometastasis lymph nodes from patients with early gastric cancer who died of recurrence. Surgery. 1996;119:397–402.
Morgagni P, Saragoni L, Folli S, et al. Lymph node micrometastases in patients with early gastric cancer: experience with 139 patients. Ann Surg Oncol. 2001;8:170–4.
Choi HJ, Kim YK, Kim YH, Kim SS, Hong SH. Occurrence and prognostic implications of micrometastases in lymph nodes from patients with submucosal gastric carcinoma. Ann Surg Oncol. 2002;9:13–9.
Morgagni P, Saragoni L, Scarpi E, et al. Lymph node micrometastases in early gastric cancer and their impact on prognosis. World J Surg. 2003;27:558–61.
Miyake K, Seshimo A, Kameoka S. Assessment of lymph node micrometastasis in early gastric cancer in relation to sentinel nodes. Gastric Cancer. 2006;9:197–202.
Cao L, Hu X, Zhang Y, Huang G. Adverse prognosis of clustered-cell versus single-cell micrometastases in pN0 early gastric cancer. J Surg Oncol. 2011;103:53–6.
Han KB, Jang YJ, Kim JH, et al. Clinical significance of the pattern of lymph node metastasis depending on the location of gastric cancer. J Gastric Cancer. 2011;11:86–93.
Pantel K, Brakenhoff RH, Brandt B. Detection, clinical relevance and specific biological properties of disseminating tumour cells. Nat Rev Cancer. 2008;8:329–40.
Weaver DL, Ashikaga T, Krag DN, et al. Effect of occult metastases on survival in node-negative breast cancer. N Engl J Med. 2011;364:412–21.
Kunisaki C, Akiyama H, Nomura M, et al. Significance of long-term follow-up of early gastric cancer. Ann Surg Oncol. 2006;13:363–9.
Nomura S, Kaminishi M. Surgical treatment of early gastric cancer. Dig Surg. 2007;24:96–100.