[Hu, Li; Li, Jianzhi; Wang, Rui] Univ South China, Sch Nursing, Hengyang 421001, Hunan, Peoples R China.
[Yu, Jiangdong] Hengyang Cent Hosp, Hengyang, Peoples R China.
[Liu, Yuming; Yang, Bo] Univ South China, Affiliated Hosp 1, Hengyang 421001, Hunan, Peoples R China.
[Liang, Yu; Zhou, Xiutian] Univ South China, Coll Med, Hengyang 421001, Hunan, Peoples R China.
[Liang, Yu] Univ South China, Inst Pathogen Biol, 28 Changsheng West Rd, Hengyang 421001, Hunan, Peoples R China.