Weerawat Kiddee, Hat Yai, Songkhla, Thailand
NKC Institues of Gastroenterology and Hepatology, Prince of Songkla University, Hatyai, Songkhla, Thailand
Songklanagarind Hospital, Hat Yai, Songkhla, Thailand
Songklanagarind Hospital, Prince of Songkla University, Hat-Yai, Songkhla, Thailand
Prince of Songkla University, Hatyai, Songkhla, Thailand
Department of anesthesiology, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand
Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkla, Thailand
Songklanagarind Hospital, Hatyai, Songkhla, Thailand
Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand
Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand