Peking University, Qingdao University - Yantai Yuhuangding Hospital, Peking University, Peking University, Peking University, Peking University, Peking University, Peking University, Peking University, Anhui Medical University, Anhui Medical University, Zhengzhou University, Zhengzhou University, NanKai University - Tianjin Central Hospital of Obstetrics and Gynecology, Lanzhou University, Guangxi Medical University - Center of Reproductive Medicine, Qingdao University, Qingdao University - Yantai Yuhuangding Hospital, Fudan University, Zhejiang University of Technology, Kunming University of Science and Technology, Capital Medical University - Beijing Tiantan Hospital, Peking University, Zhengzhou University, NanKai University - Tianjin Central Hospital of Obstetrics and Gynecology, Lanzhou University, Guangxi Medical University - Center of Reproductive Medicine, Qingdao University - Yantai Yuhuangding Hospital, Qingdao University, Anhui Medical University and Capital Medical University - Beijing Chaoyang Hospital

affiliation not provided to SSRN, Fudan University, affiliation not provided to SSRN, Jinan University, affiliation not provided to SSRN, Southern University of Science and Technology, Southern University of Science and Technology, affiliation not provided to SSRN and Fudan University

Henan University, University of Science and Technology Beijing, University of Science and Technology Beijing, Fudan University, Chinese Center for Disease Control and Prevention (China CDC) and University of Science and Technology Beijing - School of Energy and Environmental Engineering