全国孕早期绒毛产前诊断学术交流会,在国家计划生育委员会支持下,由全国优生协作组和广西壮族自治区计生委、卫生厅联合主持,于1985年12月4～6日在桂林市召开。来自全国二十九个省、市、自治区365名专家、教授、医务工作者和科研工作者参加了会议。会议学术论文共200篇,大会宣读35篇。会议围绕早孕绒毛取材、绒毛染色体直接制备法及早孕绒毛生化测定三个方面进行了讨论与交流,并初步制订出绒毛取材和直接制备染 The national prenatal villus prenatal diagnosis academic exchange, with the support of the State Family Planning Commission, jointly organized by the national eugenic collaboration group and the Guangxi Zhuang Autonomous Region Family Planning Commission, Department of Health, in December 1985 4 to 6 held in Guilin. 365 experts, professors, medical workers and researchers from 29 provinces, cities and autonomous regions nationwide attended the conference. A total of 200 academic papers, the conference read 35 articles. The conference discussed and exchanged about the first trimester villus material, the direct preparation of villus chromosomes and the biochemical determination of villus in early pregnancy,