The American Journal of Gastroenterology
The American Journal of Gastroenterology > 2000 > 95 > 3 > 777-783
The American Journal of Gastroenterology > 2000 > 95 > 3 > 788-792
The American Journal of Gastroenterology > 2000 > 95 > 3 > 772-776
The American Journal of Gastroenterology > 2000 > 95 > 3 > 605-616
The American Journal of Gastroenterology > 2000 > 95 > 3 > 802-804