by 이상곤, Sang Gon Lee, 강영우, Young Woo Kang, 김기식, Ki Sik Kim, 김윤년, Yun Nyun Kim, 김권배, Kown Bae Kim, 김영국, Young Kook Kim, 박송국, Soong Kook Park
Published in The Korean journal of medicine (01.04.1994)

by 한돈희, 나명채, 이상곤, Han, Don-Hee, Na, Myung Chai, Lee, Sang-Gon
Published in 한국산업위생학회지 (1997)

by 나용호, Yong Ho Nah, 김철우, Chull Woo Kim, 김형곤, Hyung Gon Kim, 이상곤, Sang Kon Lee, 조정구, Chung Gu Cho, 김학철, Hack Chel Kim, 박양규, Yang Kyu Park
Published in The Korean journal of gastroenterology (01.01.1983)