1. Key Laboratory of Molecular Epidemiology of Hunan Province School of Medicine, Hunan Normal University Changsha China
2. Department of Medicine & Therapeutics, Faculty of Medicine The Chinese University of Hong Kong Hong Kong SAR China
3. Department of Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health Sun Yat‐sen University Guangzhou China
4. Jockey Club Centre for Osteoporosis Care and Control The Chinese University of Hong Kong Hong Kong SAR China