[Long, Sihong; Yang, F; Zhang, Shengyu; Yang, Lili; Zhang, Rong; Yang, Fei] Univ South China, Sch Publ Hlth, Hengyang Med Sch, Hunan Prov Key Lab Typ Environm Pollut & Hlth Haza, 28 West Changsheng Rd, Hengyang 421001, Peoples R China.
[Wei, J; Wei, Jia] Cent South Univ, Xiangya Sch Publ Hlth, 172 Tongzipo Rd, Changsha 410078, Peoples R China.
[Wei, Jia] Cent Hosp Shaoyang, Dept Publ Hlth, Shaoyang, Peoples R China.
[Yang, Fei] Univ South China, Affiliated Nanhua Hosp, Hengyang Med Sch, Nucl Med Dept, Hengyang, Peoples R China.