Digestive Diseases and Sciences
Digestive Diseases and Sciences > 1997 > 42 > 3 > 677-683
Digestive Diseases and Sciences > 1997 > 42 > 3 > 453-469
Digestive Diseases and Sciences > 1997 > 42 > 3 > 470-488
Digestive Diseases and Sciences > 1997 > 42 > 5 > 972-981
Digestive Diseases and Sciences > 1997 > 42 > 10 > 2106-2110