全国南北方三分之一试点县预防医学科技档案研究班,四月中旬起在河南省中牟县举办。十九个省、市有关单位的代表,参加了这个为期两个月的研究班。预防医学科技档案,是记述和反映社会群体预防活动的档案。研究班通过互相交流经验,将促使各地有关单位进一步 One third of the pilot counties in the southern and northern parts of the country are working in the Preventive Medical Science and Technology Files Research Class, which was held in mid-April in Zhongmou County, Henan Province. Representatives from 19 provinces and cities participated in the two-month seminar. Prevention of medical science and technology files, is to record and reflect the prevention of social groups file. Through the exchange of experiences between the seminars will promote the relevant units around further