四川省科学技术厅与泸州市人民政府、泸州医学院联合科研专项资金计划项目14JC0131;四川省卫生和计划生育委员会科研课题16PJ130The Joint Research Foundation of Science and Technology Department of Sichuan Province, Luzhou People′s Government and Luhzou Medical College14JC0131;Scientific Research Foun-dation of Health and Family Planning Commission of Sichuan Province16PJ130