国家自然科学基金青年基金81301568;四川省教育厅自然科学重点项目17ZA0181;四川省卫生和计划生育委员会科研课题16PJ203;National Natural Science Foundation of China Youth Foud81301568;Key Natural Science Projects of Sichuan Provincial Education Departmen17ZA0181;Scientific Research Project of Sichuan Health and Family Planning Commission16PJ203