| incidence and mortality of gastric cancer in china. | gastric cancer is one of the most frequent cancers in the world; almost two-thirds of gastric cancer cases and deaths occur in less developed regions. in china, based on two national mortality surveys conducted in 1970s and 1990s, there is an obvious clustering of geographical distribution of gastric cancer in the country, with the high mortality being mostly located in rural areas, especially in gansu, henan, hebei, shanxi and shaanxi provinces in the middle-western part of china. despite a sli ... | 2006 | 16440411 |