[1] Cent S Univ, Sch Basic Med Sci, Dept Forens Med, Changsha 410013, Hunan, Peoples R China
[2] 302 Mil Hosp China, Dept Clin Diagnost Ctr, Beijing 100039, Peoples R China
[3] Hainan Med Univ, Affiliated Hosp, Ctr Reprod Med, Haikou 571199, Hainan, Peoples R China
[4] Inner Mongolia Univ Nationalities, Affiliated Hosp, Dept Internal Med, Tongliao 028000, Inner Mongolia, Peoples R China
[5] Hainan Med Univ, Dept Forens Med, 3 Xueyuan Rd, Haikou 571199, Peoples R China