陕西省卫生和计划生育委员会出生缺陷防治课题研究Sxwsjswzfcght2016-013;国家自然科学基金81230016;国家重点研发计划2017YFC0907200, 2017YFC0907201;The Birth Defect Control and Prevention Project of Shaanxi Commission of Health and Family PlanningSxwsjswzfcght2016-013;National Natural Science Foundation of China81230016;National Key Research and Development Program of China2017YFC0907200, 2017YFC0907201