Department of Paediatrics & Adolescent Medicine, Tseung Kwan O Hospital, 2 Po Ning Lane, Tseung Kwan O, N.T.,Hong Kong, China
KF Huen (禤桂芬) FRCPCH, FHKCPaed, FHKAM(Paed)
Department of Paediatrics & Adolescent Medicine, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, China
LCK Low (盧忠啟) FHKCPaed, FHKAM(Paed)
PT Cheung (張璧濤) FHKCPaed, FHKAM(Paed)
WHS Wong (黃慶生) MMedSc
Department of Paediatrics & Adolescent Medicine, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, N.T., Hong Kong, China
GWK Wong (黃永堅) FHKCPaed, FHKAM(Paed)
Department of Paediatrics & Adolescent Medicine, Queen Elizabeth Hospital, 30 Gascoigne Road, Kowloon, Hong Kong, China
WM But (畢慧文) FHKCPaed, FHKAM(Paed)
Department of Paediatrics & Adolescent Medicine, Pamela Youde Nethersole Eastern Hospital, 3 Lok Man Road, Chai Wan, Hong Kong, China
EYW Kwan (關彥華) FHKCPaed, FHKAM(Paed)
Department of Paediatrics & Adolescent Medicine, Kwong Wah Hospital, 25 Waterloo Road, Kowloon, Hong Kong, China
YY Lam (林琬瑜) FHKCPaed, FHKAM(Paed)
Department of Paediatrics & Adolescent Medicine, Princess Margaret Hospital/Caritas Medical Centre, Kowloon, Hong Kong, China
CY Lee (李靜賢) FHKCPaed, FHKAM(Paed)
Department of Paediatrics & Adolescent Medicine, Tuen Mun Hospital, Tsing Chung Koon Road, Tuen Mun, N.T., Hong Kong, China
LM Wong (黃立明) FHKCPaed, FHKAM(Paed)
Department of Paediatrics & Adolescent Medicine, United Christian Hospital, 130 Hip Wo Street, Kwun Tong, Kowloon, Hong Kong, China
KL Ng (吳國樑) FHKCPaed, FHKAM(Paed)
AWF Cheng (鄭慧芬) FHKCPaed, FHKAM(Paed)
Department of Paediatrics & Adolescent Medicine, Alice Ho Miu Ling Nethersole Hospital, 11 Chuen On Road, Tai Po, N.T., Hong Kong, China
CT Tong (唐志德) FHKCPaed, FHKAM(Paed)
Correspondence to: Dr KF Huen
Received July 4, 2009