[1] Univ Hong Kong, Dept Med, Hong Kong, Peoples R China
[2] Univ Hong Kong, Sch Publ Hlth, Hong Kong, Peoples R China
[3] Chinese Univ Hong Kong, JC Sch Publ Hlth & Primary Care, Hong Kong, Peoples R China
[4] Univ Hong Kong, Dept Med & Pharmacol, Hong Kong, Peoples R China
[5] Univ Hong Kong, Dept Pharm, Hong Kong, Peoples R China