Figure 1From: Trends in incidence and mortality of nasopharyngeal carcinoma over a 20–25 year period (1978/1983–2002) in Sihui and Cangwu counties in southern ChinaMap of China with NPC mortality indicated. The map shows the NPC mortality based on a nationwide investigation carried out from 1973–1976. Black areas indicate the regions with the highest mortality from NPC in southern China. Cangwu, Sihui, and Hong Kong are marked.Back to article page