Ratchatasettakul, Kanittha
Rattanasiri, Sasivimol
Promson, Kwannapa
Sringam, Pranee
Sobhonslidsuk, Abhasnee http://orcid.org/0000-0002-3730-5532
Funding for this research was provided by:
Faculty of Medicine, Ramathibodi hospital
Gastroenterological Association of Thailand