National Natural Science Foundation of China81473060,81273157,30872166;National Nonprofit Scientific Research Industry Special Fund of China201402010;Youth Science and Technology Research Foundation of Shanxi Province2015021175;Key Discipline Construction Project with Superiority and Characteristics in Shanxi Province 国家自然科学基金81473060,81273157,30872166;国家卫生和计划生育委员会公益性行业科研专项201402010;山西省青年科技研究基金2015021175;山西省优势和特色重点学科建设项目