Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
Kraburi Hospital, Ranong, Thailand
Khunhan Hospital, Srisaket, Thailand
Kap Choeng Hospital, Surin, Thailand
Faculty of Tropical Medicine, Bangkok, Thailand
Manee Raksakietisak, Bangkok, Thailand
Faculty of Medicine Siriraj Hospital, Bangkok, Thailand
Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
Ramathibodi Hospital, Bangkok, Thailand
Pediatric allergy clinic, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkoknoi, Bangkok, Thailand
Family Planning Unit, Department of Obstetric and Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand