WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 6,2006, Pages 921-927,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 6,2006, Pages 868-873,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 6,2006, Pages 961-965,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 6,2006, Pages 990-992,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 6,2006, Pages 853-857,