Transanal minimally invasive surgery (TAMIS) is a technique that was originally devised as a hybrid between Transanal Endoscopic Microsurgery (TEM) and single-site laparoscopy for resection of rectal lesions. ... Choi PW, Yu CS, Jang SJ, et al. Risk factors for lymph node metastasis in submucosal invasive colorectal cancer. World J Surg 2008;32 ...