[Zhu, Na; Ou, Yangli] Univ South China, Sch Nursing, Hengyang, Peoples R China.
[Zhang, Zhiyuan] Univ South China, Affiliated Hosp 2, Hengyang Med Sch, Emergency Dept, Hengyang, Peoples R China.
[Xie, Jun] Univ South China, Dept Student Affairs, Hengyang, Peoples R China.
[Tan, Jia] Univ South China, Affiliated Hosp 1, Hengyang Med Sch, Dept Neonatol, Hengyang, Peoples R China.
[Gao, Hong] Univ South China, Affiliated Hosp 2, Hengyang Med Sch, Dept Nursing, Hengyang, Peoples R China.