Authors: Y Arase; K Chayama; A Tsubota; N Murashima; Y Suzuki; I Koida; M Kobayashi; S Saitoh; K Ikeda; H Kumada; M Kobayashi; H Suzuki Journal: J Gastroenterol Date: 1996-08 Impact factor: 7.527
Authors: L Nakopoulou; K Stefanaki; P M Zeis; J Boletis; J Papadakis; G Vosnides; P Davaris Journal: Eur J Epidemiol Date: 1994-12 Impact factor: 8.082