[Wang, Jiani] Univ South China, Sch Nursing, Hengyang 421001, Peoples R China.
[Rao, Qin] Univ South China, Changsha Cent Hosp, Dept Pulm TB, Changsha 410004, Peoples R China.
[Zhou, Lan] Univ South China, Dept Drug Resistant TB, Changsha Cent Hosp, Changsha 410004, Peoples R China.
[Xiang, Lingling] Univ South China, Dept Extrapulm TB, Changsha Cent Hosp, Changsha 410004, Peoples R China.
[Xi, Mingxia; Xi, MX] Univ South China, Dept Nursing, Changsha Cent Hosp, Changsha 410004, Peoples R China.