| Affiliation: | 1. Tianjin Women and Children's Health Centre, Tianjin, China;2. Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China;3. Department of Medicine and Therapeutics, Hong Kong Institute of Diabetes and Obesity and Li Ka Shing Institute of Health Science, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong SAR, China;4. Chronic Disease Epidemiology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, USA;5. Population Cancer Research Program and Department of Pediatrics, Dalhousie University, Halifax, Canada |
