中国国家自然科学基金资助项目30271391;中国上海市卫生局科研项目034124;中国上海市卫生系统百名跨世纪优秀学科带头人培养计划百人计划基金资助项目No.057National Natural Science Foundation of ChinaN0.30271391;Foundation of Scientific Research Program of Health Bureau of Shanghai City, ChinaN0.034124;Foundation of Training Plan for a hundred Trans-century Excellent Subject Leaders in Shanghai Public Health System, ChinaN0.057