WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 2,2006, Pages 302-305,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 2,2006, Pages 327-330,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 2,2006, Pages 234-239,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 2,2006, Pages 341-344,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 2,2006, Pages 228-233,