[1] Prince Wales Hosp, Dept Paediat, Hong Kong, Hong Kong, Peoples R China
[2] Queen Mary Hosp, Hong Kong, Hong Kong, Peoples R China
[3] Queen Elizabeth Hosp, Hong Kong, Hong Kong, Peoples R China
[4] Tuen Mun Hosp, Hong Kong, Hong Kong, Peoples R China
[5] Chinese Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China
[6] Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China
[7] Hong Kong Pediat Hematol & Oncol Study Grp, Hong Kong, Hong Kong, Peoples R China