Huang Ruixue, Ding Ping, Huang Dequn, Yang Fei
Department of Occupational and Environmental Health, School of Public Health, Central South University, Changsha, Hunan 410078, China.
No.1 Hospital of Zhuzhou City, Zhuzhou, Hunan, China.
Lancet. 2015 Feb 28;385(9970):773-4. doi: 10.1016/S0140-6736(15)60437-8.