Initial local excision for clinical T1 rectal cancer showed comparable overall survival despite high local recurrence rate: a propensity-matched analysis oleh Jong Hee Hyun, Mohamed K. Alhanafy, Hyoung-Chul Park, Su Min Park, Sung-Chan Park, Dae Kyung Sohn, Duck-Woo Kim, Sung-Bum Kang, Seung-Yong Jeong, Kyu Joo Park, Jae Hwan Oh