Digestive Diseases and Sciences
Digestive Diseases and Sciences > 1998 > 43 > 4 > 863-869
Digestive Diseases and Sciences > 1999 > 44 > 2 > 341-349
Digestive Diseases and Sciences > 1998 > 43 > 4 > 863-869
Digestive Diseases and Sciences > 1999 > 44 > 2 > 341-349