Liya LIU Lizhang CHEN Zhanzhan LI Liang LI Jian QU Jing XUE

liya liu 1. dept. of epidemiology and health statistics, school of public health, central south university , changsha, china . ; 2. dept. of medical laboratory, hunan university of medicine , huaihua, china. lizhang chen 1. dept. of epidemiology and health statistics, school of public health, central south university , changsha, china . zhanzhan li 1. dept. of epidemiology and health statistics, school of public health, central south university , changsha, china . liang li 3. medical department of the first affiliated hospital of xiangya, central south university , changsha, china. jian qu 4. the institute of clinical pharmacology, central south university , changsha, china. jing xue 1. dept. of epidemiology and health statistics, school of public health, central south university , changsha, china .