Department of Public Health Epidemiology and Biostatistics University of Birmingham Birmingham B15 2TT;
Centre for Biostatistics and Genetic Epidemiology Department of Health Sciences University of Leicester Leicester LE1 7RH;
School of Mathematical Sciences University of Birmingham Birmingham B15 2TT;
中国医学科学院基础医学研究所流行病和卫生统计学教研室;
