[Zeng, Xian-Tao; Luo, Li-Sha] Wuhan Univ, Ctr Evidence Based & Translat Med, Zhongnan Hosp, 169 Donghu Rd, Wuhan 430071, Hubei, Peoples R China.
[Luan, Hang-Hang] Wuhan Univ, Dept Forens Med, Zhongnan Hosp, Wuhan, Hubei, Peoples R China.
[Jiang, Jun-Feng] Cent China Normal Univ, Sch Sociol, Dept Sociol, Wuhan, Hubei, Peoples R China.
[Li, Cheng; Wu, Lan] Wuhan Univ, Dept Stomatol, Zhongnan Hosp, Wuhan, Hubei, Peoples R China.
[Leng, Wei-Dong] Hubei Univ Med, Taihe Hosp, Dept Stomatol, Shiyan, Peoples R China.