[1] Capital Med Univ, Sch Nursing, Beijing, Peoples R China
[2] Peking Univ, Sch Nursing, Dept Humanities Nursing, Beijing, Peoples R China
[3] Peking Univ, Hosp 1, Nursing Dept, Beijing, Peoples R China
[4] Beijing Nursing Assoc, Jia 7,Dongdan 3 Tiao, Beijing 100005, Peoples R China
[5] Univ Pittsburgh, Sch Nursing, Int Affairs, Pittsburgh, PA 15261 USA