National Cheng Kung University Hospital, Tainan City, Taiwan
National Cheng Kung University Hospital, Tainan, Taiwan
National Cheng Kung University Hospital, Tainan, Taiwan
National Cheng Kung University Hospital, Tainan, Taiwan
National Cheng Kung University Hospital, Tainan, Taiwan
Helicobacter pylori study group, National Cheng Kung University Hospital, Tainan, Taiwan
Hsueh-Chien Chiang, Tainan, Other (Non U.s.), Taiwan
National Cheng Kung University, Tainan, Taiwan