[1] Zhejiang Univ, Sch Med, Nursing Dept, Hangzhou, Peoples R China
[2] Zhejiang Tech Coll Special Educ, Hangzhou, Peoples R China
[3] Zhejiang Univ, Sir Run Run Shaw Hosp, Sch Med, Hangzhou, Peoples R China
[4] Zhejiang Univ, Affiliated Hosp 4, Sch Med, Yiwu, Peoples R China
[5] Loma Linda Univ, Cardiopulm Sci, Sch Allied Hlth Profess, Loma Linda, CA 92350 USA