1. Hanoi Medical University, Bach Mai Hospital, Clinic of Pediatrics, Hanoi, Vietnam

2. Bach Mai Hospital, Diagnostic Imaging Central, Hanoi, Vietnam

3. Viet Duc Hospital, Maxillofacial, Department of Plastic and Aesthetic Surgery, Hanoi, Vietnam

4. Bach Mai Hospital, Clinic of Pediatrics, Hanoi, Vietnam

5. Mahidol University Faculty of Medicine; Ramathibodi Hospital, Department of Pediatrics, Division of Rheumatology, Bangkok, Thailand