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Best Practice & Research Clinical Gastroenterology > 2004 > 18 > 3 > 497-508
Digestive and Liver Disease > 2001 > 33 > 9 > 762-767
European Journal of Internal Medicine > 2001 > 12 > 2 > 98-100
Best Practice & Research Clinical Gastroenterology > 2004 > 18 > 3 > 497-508
Digestive and Liver Disease > 2001 > 33 > 9 > 762-767
European Journal of Internal Medicine > 2001 > 12 > 2 > 98-100