WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 11,2004, Pages 1600-1607,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 11,2004, Pages 1675-1677,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 11,2004, Pages 1612-1618,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 11,2004, Pages 1551-1554,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 10, Issue 11,2004, Pages 1625-1629,