四川省卫生和计划生育委员会科研课题150070;泸州市人民政府-西南医科大学科技战略合作项目2016LZXNYD J29Science and Research Project of Health and Family Planning Commission of Sichuan Province150070;Science and Technology Strategic Cooperation Project of Luzhou People's Government and Southwest Medical University2016LZXNYD J29