School of Public Health, Health Science Center, Xian Jiaotong University, Xian, P. R. China.|School of Public Health, Health Science Center, Xian Jiaotong University, Xian, P. R. China.|School of Public Health, Health Science Center, Xian Jiaotong University, Xian, P. R. China.|School of Public Health, Health Science Center, Xian Jiaotong University, Xian, P. R. China.|School of Public Health, Health Science Center, Xian Jiaotong University, Xian, P. R. China.|Health Science Center, Xian Jiaotong University, Xian, P. R. China.|Health Science Center, Xian Jiaotong University, Xian, P. R. China.|Health Science Center, Xian Jiaotong University, Xian, P. R. China.|Health Science Center, Xian Jiaotong University, Xian, P. R. China.|Health Science Center, Xian Jiaotong University, Xian, P. R. China.|School of Public Health, Health Science Center, Xian Jiaotong University, Xian, P. R. China.|School of Public Health, Health Science Center, Xian Jiaotong University, Xian, P. R. China.|School of Public Health, Health Science Center, Xian Jiaotong University, Xian, P. R. China.|School of Public Health, Health Science Center, Xian Jiaotong University, Xian, P. R. China.|Center for Bioinformatics and Genomics, Department of Global Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, USA.|Center for Bioinformatics and Genomics, Department of Global Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, USA.|School of Public Health, Health Science Center, Xian Jiaotong University, Xian, P. R. China.|Center for Bioinformatics and Genomics, Department of Global Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, USA.