北京市自然科学基金7162060;北京市医院管理局临床医学发展专项ZYLX201601;首都医科大学基础临床合作研究基金16JL22;北京儿童医院顺义妇儿医院妇幼健康基金FYJK201601 Beijing Municipal Natural Science Foundation7162060;Beijing Municipal Administration of Hospitals Clinical Medicine Development of Special Funding SupportZYLX201601;Basic and Clinic Science Foundation of Capital Medical University16JL22;Maternal and Child Health Foundation of Shunyi Women and Children's Hospital of Beijing Children's HospitalFYJK201601