WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 7,2006, Pages 1157-1159,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 7,2006, Pages 1110-1114,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 7,2006, Pages 1098-1104,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 7,2006, Pages 1144-1148,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 7,2006, Pages 1049-1055,