WORLD JOURNAL OF GASTROENTEROLOGY, Volume 13, Issue 1,2007, Pages 65-73,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 13, Issue 1,2007, Pages 74-81,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 13, Issue 1,2007, Pages 104-124,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 13, Issue 1,2007, Pages 159,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 13, Issue 1,2007, Pages 14-21,