by Sung Ho Kim, Chan Woo Park, Sung Keun Kim, Sam Won, Woo Kyung Park, Hye Reen Kim, Kwan Woo Nam, Gye Sung Lee
Published in Clinical endoscopy (30.05.2013)

by Cha, Dong Youb, Song, In Kwan, Choi, Hwan Won, Chung, Eun A, Shin, Bong Seok, Song, Young Wook, Lee, Sang Mi, Kim, Hong Min, Kim, Young Kwan, Lee, Young-Ha, Lee, Gye Sung
Published in Journal of gastroenterology (01.09.2002)

by 이계성(Gye-Sung Lee)
Published in 한국컴퓨터정보학회논문지 (01.09.2016)

by 김굉배, Goeng Bae Kim, 정재진, Jae Jin Jeong, 박설, Sul Park, 고재이, Jae Ee Ko, 고상훈, Sang Hoon Ko, 강현모, Hyoun Mo Kang, 이계성, Gye Sung Lee
Published in The Korean journal of medicine (01.05.2012)

by Kim, Sung Ho, Park, Chan Woo, Kim, Sung Keun, Won, Sam, Park, Woo Kyung, Kim, Hye Reen, Nam, Kwan Woo, Lee, Gye Sung
Published in Clinical endoscopy (01.05.2013)

by 정재진, Jae Jin Jeong, 김굉배, Goeng Bae Kim, 박설, Seol Park, 윤형식, Hyung Sik Yoon, 서광선, Kwang Sun Seo, 이계성, Gye Sung Lee, 강현모, Hyoun Mo Kang
Published in The Korean journal of medicine (01.01.2011)

by 문선경, Sun Kyung Moon, 이계성, Gye Sung Lee, 이엄석, Earm Seok Lee, 강현모, Hyun Mo Kang, 이지현, Ji Hyun Lee, 김재수, Jae Su Kim, 김성철, Sung Cheol Kim, 곽승수, Seung Soo Kwak
Published in The Korean journal of gastroenterology (01.11.2007)

by 이계성
Published in International journal of advanced culture technology (Online) (30.09.2019)

by 오재진, Jane C. Oh, 이계성, Gye Sung Lee, 김재수, Jae Su Kim, 박열, Yol Park, 이성훈, Sung Hoon Lee, 김안나, An Na Kim, 이종민, Jong Min Lee, 김규순, Kyu Soon Kim
Published in The Korean journal of gastroenterology (15.09.2004)

by 김창원, Chang Won Kim, 이종민, Jong Min Lee, 오재인, Ja Ne Coh, 정인성, In Sung Jung, 강기만, Ki Man Kang, 정신홍, Shin Hong Jung, 이계성, Gye Sung Lee, 김안나, An Na Kim, 곽승수, Seung Soo Kwak, 이미선, Mi Sun Lee
Published in The Korean journal of gastroenterology (15.05.2004)

by Kang, Ki-Man, Lee, Gye-Sung, Lee, Jae-Ho, Choi, In-Wook, Shin, Dae-Whan, Lee, Young-Ha
Published in Korean journal of parasitology (01.12.2004)

by 조영희(Young-Hee Cho), 이계성(Gye-Sung Lee)
Published in 韓國컴퓨터情報學會論文誌 (2011)

by Lee, Gye-Sung, Cho, In-Sung, Lee, Young-Ha, Noh, Hyung-Jun, Shin, Dae-Whan, Lee, Sok-Goo, Lee, Tae-Yong
Published in Korean journal of parasitology (01.03.2002)

by 전진호(Jin-Ho Jeon), 이계성(Gye-Sung Lee)
Published in 韓國컴퓨터情報學會論文誌 (2009)

by 김성호, Sung Ho Kim, 박찬우, Chan Woo Park, 고상훈, Sang Hun Ko, 김성근, Sung Keun Kim, 이계성, Gye Sung Lee, 남관우, Gwan Woo Nam, 고재이, Jae I Ko, 윤형식, Hyng Sik Yun
Published in Taehan Sohwagi Naesigyŏng Hakhoe chi (28.02.2011)

by 전진호(Jin-Ho Jeon), 조영희(Young-Hee Cho), 이계성(Gye-Sung Lee)
Published in 한국콘텐츠학회논문지 (2006)

by 전진호(Jin-Ho Jeon), 이계성(Gye-Sung Lee)
Published in 한국콘텐츠학회 논문지, 7(6) (2007)

by Lee, Gye Sung, Kim, In-Kook
Published in The Journal of the Institute of Internet Broadcasting and Communication (31.08.2016)

by 조영희(Young-Hee Cho), 전진호(Jin-Ho Jeon), 이계성(Gye-Sung Lee)
Published in 韓國컴퓨터情報學會論文誌 (2009)

by 이지현, Ji Hyun Lee, 이계성, Gye Sung Lee, 이엄석, Eom Seok Lee, 강현모, Hyun Mo Kang, 김재수, Jae Su Kim, 윤영걸, Young Gul Yoon, 정인성, In Sung Jung, 이미선, Mi Seon Lee
Published in Taehan Sohwagi Naesigyŏng Hakhoe chi (30.10.2008)