[1] Univ Hong Kong, HKJC Ctr Suicide Res & Prevent, Pokfulam, Hong Kong, Peoples R China
[2] Univ Hong Kong, Ctr Advancement Univ Teaching, Pokfulam, Hong Kong, Peoples R China
[3] Univ Rochester, Med Ctr, Dept Psychiat, Ctr Study & Prevent Suicide, Rochester, NY 14642 USA
[4] Univ Hong Kong, Fac Social Sci, Dept Social Work & Social Adm, Pokfulam, Hong Kong, Peoples R China