Digestive Diseases and Sciences
Digestive Diseases and Sciences > 1997 > 42 > 7 > 1489-1494
Digestive Diseases and Sciences > 1997 > 42 > 9 > 1919-1925
Digestive Diseases and Sciences > 1997 > 42 > 7 > 1489-1494
Digestive Diseases and Sciences > 1997 > 42 > 9 > 1919-1925