Digestive Diseases and Sciences
Digestive Diseases and Sciences > 1997 > 42 > 6 > 1189-1193
Digestive Diseases and Sciences > 1997 > 42 > 8 > 1628-1633
Digestive Diseases and Sciences > 1997 > 42 > 6 > 1189-1193
Digestive Diseases and Sciences > 1997 > 42 > 8 > 1628-1633