1. Department of Pediatrics Faculty of Medicine Siriraj Hospital Mahidol University Bangkok Thailand
2. Department of Pediatrics Faculty of Medicine Chulalongkorn University Bangkok Thailand
3. Thai Red Cross AIDS Research Center (TRCARC) HIVNAT Bangkok Thailand
4. Division of Child and Adolescent Psychiatry Faculty of Medicine Siriraj Hospital Mahidol University Bangkok Thailand
5. Queen Sirikit National Institute of Child Health Bangkok Thailand
6. Department of Pediatrics Faculty of Medicine Khon Kaen University Khon Kaen Thailand