Peking University - Center for Healthy Aging and Development Studies, Peking University - Dementia Care and Research Center, Karolinska Institutet - Aging Research Centre, Peking University - Institute of Reproductive and Child Health, Stanford University - Department of Statistics, Cornell University - Department of Healthcare Policy and Research, University of Maryland, College Park - Department of Health Policy and Management, The University of Osaka - Public Health, University of New South Wales (UNSW) - School of Psychology, University College London - Department of Mental Health of Older People, Peking University - Institute of Reproductive and Child Health, Duke University - Duke Global Health Institute, Peking University - Dementia Care and Research Center and Duke University - Center for the Study of Aging and Human Development