[Li, Dan; Tang, Si-Yuan; Li, D] Cent South Univ, Xiangya Sch Nursing, Changsha, Hunan, Peoples R China.
[Li, D; Li, Dan] Hunan Open Univ, Coll Appl Technol, Changsha, Hunan, Peoples R China.
[Lei, Sheng] Hunan Chest Hosp, Intervent Radiol Ctr, Changsha, Hunan, Peoples R China.
[Xie, He-Bin] Univ South China, Changsha Cent Hosp, Dept Drug Clin Trial Inst, Hengyang Med Sch, Changsha, Hunan, Peoples R China.
[Li, Lin-Qi] Univ South China, Sch Publ Hlth, Hengyang, Peoples R China.