国家自然科学基金81760618;广西医疗卫生适宜技术推广与应用项目S201682;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Z2016451National Natural Science Foundation of China81760618;Expanded and Applied Project of Appropriate Technology of Medicine and Health in Guangxi Zhuang Autonomous RegionS201682;Self-founded Science and Research project founded by Guangxi Zhuang Autonomous Region Health and Family Planning CommitteeZ2016451