在鼻咽癌的病因研究中，最引人注目的，是EB病毒的感染和我国南方居民喜食咸鱼的生活习惯，两者皆被广泛认为与鼻咽癌的发生有密切联系。我们自1986年11月起在我国鼻咽癌高发区广东省四会县进行一项历时九年的回顾性前瞻性研究，现将该研究的一些初步结果报告如下：材料与方法1 In the etiology of nasopharyngeal carcinoma, the most striking is the infection of Epstein-Barr virus and the habit of eating salted fish in southern China. Both of them are widely considered to be closely related to the occurrence of nasopharyngeal carcinoma. Since November 1986, we conducted a retrospective prospective study in Sihui County, Guangdong Province, China, with high prevalence of NPC, and reported some preliminary results of the study as follows: Materials and Methods 1