[1] Univ Hong Kong, Dept Psychiat, Pokfulam, Hong Kong, Peoples R China
[2] Univ Hong Kong, Sch Publ Hlth, Pokfulam, Hong Kong, Peoples R China
[3] Univ Penn, Perelman Sch Med, Dept Psychiat, Brain Behav Lab, Philadelphia, PA USA
[4] Univ Hong Kong, State Key Lab Brain & Cognit Sci, Pokfulam, Hong Kong, Peoples R China
[5] Katholieke Univ Leuven, Ctr Contextual Psychiat, Dept Neurosci, Res Grp Psychiat, Leuven, Belgium
[6] Queen Mary Hosp, Dept Psychiat, 2-F New Clin Bldg,102 Pok Fu Lam Rd, Hong Kong, Peoples R China