[1] Chinese Univ Hong Kong, Prince Wales Hosp, Jockey Club Sch Publ Hlth & Primary Care, Shatin, Hong Kong, Peoples R China
[2] Prince Wales Hosp, Dept Med & Therapeut, Shatin, Hong Kong, Peoples R China
[3] Hosp Author, Dept Family Med, Lek Yuen GOPC, Shatin, Hong Kong, Peoples R China