How to do single‐port laparoscopic cholecystectomy using LEAN BACK technique. Issue 4 (30th December 2014) - You, Kwon Cheol; Yoo, Tae; Park, Sung Gil; Kang, Hee Joon; Pak, Kyung Ho; Kim, Jeong Yeon; Kim, Jong Wan; Lim, Young Ah