Thanachartwet, Vipa
Wattanathum, Anan
Oer-areemitr, Nittha
Jittmittraphap, Akanitt
Sahassananda, Duangjai
Monpassorn, Chalida
Surabotsophon, Manoon
Desakorn, Varunee
Funding for this research was provided by:
Faculty of Tropical Medicine, Mahidol University
the Royal College of Physicians of Thailand