[Zhao, Ling] Cent S Univ, Xiangya Nursing Sch, Dept Clin Psychol Nursing, Changsha, Hunan, Peoples R China.
[Zhao, Ling] Univ South China, Sch Nursing, Dept Int & Humanist Nursing, Hengyang, Peoples R China.
[Wang, Rong] Univ South China, Dept Oncol, Affiliated Hosp 1, Hengyang, Peoples R China.
[Liu, Shan] Univ South China, Affiliated Hosp 1, Dept Hematol, Hengyang, Peoples R China.
[Yan, Jin] Third Xiangya Hosp, Dept Nursing, 138 Tongzipo Rd, Changsha 410013, Hunan, Peoples R China.