[Zhou, Wenjuan] Cent S Univ, Sch Basic Med, Changsha 410013, Hunan, Peoples R China.
[Wang, Honghong; He, Guoping; Zhou, Wenjuan; Liu, Dan] Cent S Univ, Xiangya Sch Nursing, Changsha 410013, Hunan, Peoples R China.
[He, Ying] Hunan Normal Univ, Coll Med, Dept Nursing, Changsha, Hunan, Peoples R China.
[Yuan, Qun] Hunan Univ Chinese Med, Sch Nursing, Changsha, Hunan, Peoples R China.
[Liu, Dan] Cent S Univ, Xiangya Sch Nursing, 172 Tongzipo Rd, Changsha 410013, Hunan, Peoples R China.