Authors: H Takahashi; H Hayakawa; M Tanaka; K Okamura; A Kosaka; R Mizumoto; K Katsuta; R Yatani Journal: J Gastroenterol Date: 1997-12 Impact factor: 7.527
Authors: O S Kwon; H S Lee; D W Koh; Y J Cho; Y H Park; D K Park; Y L Oh; J H Seo; H J Chun; S H Um; S W Lee; J H Choi; C D Kim; H S Ryu; J H Hyun; A R Kim; Y S Kim Journal: Korean J Intern Med Date: 2001-12 Impact factor: 2.884