[1] Johns Hopkins Univ, Sch Nursing, Baltimore, MD USA
[2] Chengdu Med Coll, Sch Nursing, Chengdu, Peoples R China
[3] Shenyang Med Coll, Sch Nursing, Shenyang, Peoples R China
[4] Texas Womans Univ, Coll Nursing, Dallas, TX USA
[5] Peking Univ, Sch Nursing, Beijing, Peoples R China
[6] Peking Union Med Coll, Sch Nursing, Beijing, Peoples R China
[7] Sichuan Univ, West China Hosp, Innovat Ctr Nursing Res, Chengdu, Peoples R China
[8] Cent South Univ, Xiangya Sch Nursing, Changsha, Peoples R China
[9] Sichuan Univ, West China Hosp, Natl Clin Res Ctr Geriatr, Nursing Key Lab Sichuan Prov, Chengdu, Peoples R China
[10] Sichuan Univ, West China Hosp, Sci & Technol Dept, Chengdu, Peoples R China
[11] Univ Wollongong, Wollongong, Australia
[12] Johns Hopkins Univ, Bloomberg Sch Publ Hlth, Baltimore, MD USA
[13] Johns Hopkins Univ, Sch Nursing, 525 N Wolfe St, Baltimore, MD 21218 USA