Lee P P W, Wong W H S, Leung G M, Chiu S S, Chan K H, Peiris J S M, Lam T H, Lau Y L
Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong.
Hong Kong Med J. 2008 Aug;14 Suppl 4:17-20.