[1] Peoples Hosp Yubei Dist Chongqing City, Jianshe Ave, Chongqing, Peoples R China
[2] Chengdu Univ Tradit Chinese Med, Sch Nursing, Shierqiao Ave, Chengdu, Sichuan, Peoples R China
[3] Kiang Wu Nursing Coll Macau, Est Repouso 35, Macau, Peoples R China
[4] Univ Kentucky, Coll Nursing, BREATHE 315 Coll Nursing Bldg, Lexington, KY 40536 USA