Rajavithi Hospital, Bangkok, Thailand
Siriraj Hospital, Bangkoknoi, Bangkok, Thailand
Quinze-Vingts Hospital, Paris, France
Siriraj Hospital, Bangkoknoi, Bangkok, Thailand
Siriraj Hospital, Faculty of Medicine, Mahidol university, Bangkok, Thailand
Juree Rawdmanee, Sukhumvit, Bangkok, Thailand
Faculty of medicine, Chiangmai University, Chiangmai, Thailand