[1
]
National Institute of Environmental Health, Chinese Center for Disease Control and
Prevention, Beijing, China.
[2
]
Division of Non-Communicable Disease Control and Community Health, Chinese Center
for Disease Control and Prevention, Beijing, China.
[3
]
Center for the Study of Aging and Human Development, and the Geriatric Division of
the School of Medicine, Duke University, Durham, NC, USA.
[4
]
Center for the Study of Aging and Human Development, and the Geriatric Division of
the School of Medicine, Duke University, Durham, NC, USA; Center for Study of Healthy
Aging and Development Studies, Peking University, Beijing, China.
[5
]
Department of Environmental Health, Rollins School of Public Health, Emory University,
Atlanta, GA, USA.
[6
]
Department of Environmental Health, Boston University School of Public Health, Boston,
MA, USA.
[7
]
National Institute of Environmental Health, Chinese Center for Disease Control and
Prevention, Beijing, China. Electronic address: shixm@chinacdc.cn.