Authors: A L Blum; H Bethge; J C Bode; W Domschke; G Feurle; K Hackenberg; B Hammer; W Hüttemann; M Jung; G Kachel Journal: Gut Date: 1990-07 Impact factor: 23.059
Authors: D A Lipson; J A Berlin; H I Palevsky; R M Kotloff; G Tino; J Bavaria; L Kaiser; W B Long; D C Metz; G R Lichtenstein Journal: Dig Dis Sci Date: 1998-06 Impact factor: 3.199