[He, Zhiqing; You, Jiachun; Li, Shulin; Xu, Chaoyue] Univ South China, Dept Nursing, 28 Changshengxi Rd, Hengyang 421001, Hunan, Peoples R China.
[Dai, Li; Dai, L] Shenzhen Baoan Dist Peoples Hosp, 118 Second Longjing Rd, Shenzhen 518100, Guangdong, Peoples R China.
[Huang, YJ; Huang, Yanjin] Ningxia Med Univ, Dept Nursing, Yanhu Campus,1160 Shengli St, Yinchuan 750003, Ningxia, Peoples R China.