1. NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
2. Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin 300134, China