由中国抗癌协会肿瘤流行病学专业委员会主办的中国第四届全国肿瘤流行病学与肿瘤预防学术会议于１９９９年６月２１日至２５日在天津召开。会议检阅了自１９９５年第三届学术会议以来的四年期间肿瘤流行病学的研究成果并总结了肿瘤预防工作方面的经验，指出了进入下世纪初的工 The 4th National Conference on Cancer Epidemiology and Cancer Prevention, organized by the China Cancer Society’s Cancer Epidemiology Committee, was held in Tianjin from June 21st to 25th, 1999. The conference reviewed the research results of tumor epidemiology during the four years since the third academic conference in 1995 and summarized the experience in cancer prevention work, pointing out the work that entered the beginning of the next century.