WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 17,2004, Pages 2585-2587,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 17,2004, Pages 2547-2549,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 17,2004, Pages 2535-2539,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 17,2004, Pages 2482-2487,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 17,2004, Pages 2488-2492,