Name and detailed address of the institution: No.336 Dongfeng South Road, Nanhua Hospital affiliated to Nanhua University, No.336 Hengyang Fourth People's Hospital Dongyang Du Hengyang Fourth People's Hospital Hengyang Metallurgical Hospital No.2 Li Jianguo, Zhuhui District, Hengyang jiangdong district Hospital of Traditional Chinese Medicine No.28 Longjiaping, Dongfeng Road, Zhuhui District, Hengyang No.238 Dongfeng North Road, Second People's Hospital of Hengyang No.309 Dongfeng South Road, Zhuhui District, Center for Disease Control and Prevention in Zhuhui District, Hunan Province Hengyang Central Hospital No.2 Hubei Li/KLOC-0 in Zhuhui District, Hengyang City, Hunan Province Yancheng Road Maternal and Child Health Hospital No.89 Jiefang Road, Hengyang City No.65 tianmashan Street Road Hengyang City Fifth People's Center for Disease Control and Prevention Hunan Hengyang City Center for Disease Control and Prevention No.7 Heping South Road, Yanfeng District, Hengyang City Back Street of the First Affiliated Hospital of South China University, No.69 Chuanshan Avenue, Shigu District, Hengyang City, Hunan Province 175 Zhongshan North Road, Shigu District Center for Disease Control and Prevention, Hengyang City 175 No.25 Zhengxiang North Road, zhengxiang district, Hengyang City, Hunan Province Dali New Village, zhengxiang district City 10 No.27 Songqing Road, Hengyang High-tech Zone; No.6 Hongxiang North Road, Hengyang City; The Third Affiliated Hospital of Nanhua University; No.66 Wanfu Road, Nanyue District Center for Disease Control and Prevention, Hengyang County People's Hospital; Xi Du _ No.59 Xinzheng East Road; Hengyang County Hospital of Traditional Chinese Medicine Hengyang County; No.6 Hongshan Road, Yingnan New District; Hengyang County Third People's County Third People's Hospital Hengyang County Second People's Hospital Zhajiang Town Xingfu Road Hengyang Township Chinese Medicine Hospital Hengyang City Hengyang County Xi Du _S3 1 5 Intersection of County Road and Qingfeng Road Hengyang Township Hospital of Traditional Chinese Medicine Hengyang County Maternal and Child Health Care Family Planning Service Center Sanzhong North Road Xi Du Town Hengyang County Center for Disease Control and Prevention No.32 Qingjiang Middle Road Xi Du Town Hengyang County People's Hospital No.469 Zhengde Road Ji Yun Town Hengnan County Hospital of Traditional Chinese Medicine Hengnan County Hospital Yingbin North Road Hengnan County Maternal and Child Health Care Family Planning Service Center Hengnan County Ji Yun Xintang North Road Hengnan County Maternal and Child Health Hospital Ji Yun Town Xinhengshan County People's Hospital Tangnan Road 3/ Kloc-0/3 No.328 Jinlong North Road, Kaiyun Town, Hengshan County, Hengshan County, shigu village Tuanjie Group, Kaiyun Town, Hengyang City, Hunan Province/Building Kloc-0/? Hengdong County Center for Disease Control and Prevention Hengdong County Center for Disease Control and Prevention Hengdong County People's Hospital Hengdong County Chinese Medicine Hospital Hengdong Baijun Hospital Hengdong County Chengguan Town Chengbei Development Zone Hengdong County Second People's Hospital Hunan Province Hengdong County Xintang _ Dong Jian Road Hengdong County Center for Disease Control and Prevention Qidong County People's Hospital Qidong County Second People's Hospital No.79 Hengdong Avenue, Hengdong County, Hengyang City, Hunan Province. Second People's Hospital Qidong New District Hospital No.538 Qifeng Avenue, Qidong County No.337 Nanshan Road, Qifeng Hospital, Qidong County Traditional Chinese Medicine Hospital Yongchang Street Lan Zhi Tangcun Qidong County Traditional Chinese Medicine Hospital Qidong County Maternal and Child Health Hospital Yu He Street Jianshe Road 160 Qidong County Center for Disease Control and Prevention Shuguang Road Health Bureau Building No.98 Yongchang Street, leiyang city People's Hospital Chengbei East Road, No.438, Kangkang Hospital, No.333, leiyang city Shennong Road, No.241Daqiao Road, leiyang city, leiyang city Hospital of Traditional Chinese Medicine, leiyang city Center for Disease Control and Prevention, No.256 Wuyi East Road, leiyang city Center for Disease Control and Prevention, No.9 Qunying West Road, Changning City, No.68 Qunying East Road, Changning Hospital of Traditional Chinese Medicine, Changning Maternal and Child Health and Family Planning Service Center, 4 16 Quanfeng West Road, Changning Center for Disease Control and Prevention/kloc-