affiliation not provided to SSRN, Chinese PLA General Hospital - Geriatric Neurology Department of The Second Medical Center, Sun Yat-sen University (SYSU), Sun Yat-sen University (SYSU) - Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Sun Yat-sen University (SYSU) - Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Peking University - Institute of Reproductive and Child Health, Chinese PLA General Hospital - Geriatric Neurology Department of The Second Medical Center, Sun Yat-Sen University (SYSU) - Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Monash University - Department of Epidemiology and Preventive Medicine and Monash University - Department of Epidemiology and Preventive Medicine

Peking University - Institute of Reproductive and Child Health, Peking University, Peking University - Institute of Reproductive and Child Health, Peking University - Institute of Reproductive and Child Health, Peking University, Peking University, Peking University, Peking University and Peking University - Department of Epidemiology and Biostatistics

Peking University - Institute of Reproductive and Child Health, Peking University - Institute of Reproductive and Child Health, Peking University - Institute of Reproductive and Child Health, Peking University - Institute of Reproductive and Child Health, Peking University - Institute of Reproductive and Child Health and Peking University - Institute of Reproductive and Child Health