[1] Sichuan Univ, West China Sch Nursing, West China Hosp, Mental Hlth Ctr, Chengdu, Peoples R China
[2] Sichuan Univ, West China Hosp, West China Sch Nursing, Chengdu, Peoples R China
[3] Peking Univ, Sch Nursing, Beijing, Peoples R China
[4] Sichuan Univ, West China Sch Nursing, West China Hosp, Dept Nursing, 37 Guoxuexiang, Chengdu, Peoples R China