Authors
Wu-Ga Jishi
West China School of Nursing/Department of West China Hospital, Sichuan University, Chengdu, China
Jin-Bo Fang
West China School of Nursing/Department of West China Hospital, Sichuan University, Chengdu, China
Jie Li
West China School of Nursing/Department of West China Hospital, Sichuan University, Chengdu, China