广西壮族自治区卫生厅科技研究计划课题桂重卫200811;广西壮族自治区卫生和计划生育委员会自筹经费科研课题Z20180767;Science and Technology Research Program of the Health Department of Guangxi Zhuang Autonomous RegionGui Zhongwei 200811;Self-financed Scientific Research Projects of Guangxi Zhuang Autonomous Region Health and Family Planning CommissionZ20180767