Gastroenterology
Gastroenterology > 2002 > 122 > 1 > 60-71
Gastroenterology > 2002 > 122 > 1 > 178-187
Gastroenterology > 2002 > 122 > 1 > 211-219
Gastroenterology > 2002 > 122 > 1 > 60-71
Gastroenterology > 2002 > 122 > 1 > 178-187
Gastroenterology > 2002 > 122 > 1 > 211-219