Futami R, Shimanuki K, Sugiura A, Tsuchiya Y, Kaneko M, Okawa K, Mineta S, Sugiyama Y, Akimaru K, Tajiri T. Recurrence of colonic cancer twice at the site of stapled colorectal anastomosis. J Nippon Med Sch. 2007 Jun;74(3):251–6. doi: 10.1272/jnms.74.251. PMID: 17625376.