WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 42,2005, Pages 6662-6666,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 42,2005, Pages 6656-6661,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 42,2005, Pages 6725-6727,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 42,2005, Pages 6587-6592,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 11, Issue 42,2005, Pages 6701-6706,