Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Capital Medical University - Department of Laboratory, Government of the People's Republic of China - Institute for Immunization and Prevention, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Capital Medical University - Experimental Center for Basic Medical Teaching and Government of the People's Republic of China - Beijing Research Center for Preventive Medicine

Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Government of the People's Republic of China - Beijing Research Center for Preventive Medicine, Beijing Municipal Health Commission Information Center, Xicheng Distract Center for Diseases Control and Prevention, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health, Chinese Academy of Medical Sciences - Department of Etiology and Carcinogenesis, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control and Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health

Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Xicheng Distract Center for Diseases Control and Prevention, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Government of the People's Republic of China - Beijing Research Center for Preventive Medicine, Beijing Municipal Health Commission Information Center, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health and Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control

Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Municipal Health Commission Information Center, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Xicheng Distract Center for Diseases Control and Prevention, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control, Government of the People's Republic of China - Beijing Research Center for Preventive Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health, Chinese Academy of Medical Sciences - Department of Etiology and Carcinogenesis, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health, Beijing Research Center for Preventive Medicine - Beijing Center for Disease Prevention and Control and Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - School of Population Medicine and Public Health