Pausawasdi Nonthalee, Apisarnthanarak Piyaporn, Pongpaibul Ananya, Charatcharoenwitthaya Phunchai
Division of Gastroenterology, Department of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Gastrointest Endosc. 2012 Sep;76(3):668-9. doi: 10.1016/j.gie.2012.04.463. Epub 2012 Jun 12.