| Affiliation: | 1. Faculty of Health Sciences, Simon Fraser University, 8888 University Dr, Burnaby, British Columbia, Canada, V5A 1S6;3. School of Population and Public Health, University of British Columbia, 2206 E Mall, Vancouver, British Columbia, Canada, V6T 1Z3;4. School of Public Health and Health Systems, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada, N2L 3G1;5. Department of Pathology and Laboratory Medicine, University of British Columbia, 2211 Wesbrook Mall, Vancouver, British Columbia, Canada, BC V6T 2B5;1. School of Nursing, Wuhan University, No.115, Donghu Road, Wuchang District, Wuhan, 430071, Hubei Province, China;2. Obstetrics Department, Chongqing Health Center for Women and Children, No.120, Longshan Road, Yubei District, 400021, Chongqing Province, China |
