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胃癌是世界范围内最常见的恶性肿瘤之一,其总体发病率居恶性肿瘤第四。在不同国家、地区,胃癌发病率差异较大,其中发病率较高的国家和地区包括日本、哥斯达黎加、秘鲁、巴西、中国、韩国、智利、中国台湾和一些前苏联的联盟国。近年来,尽管世界范围内胃癌总体发病率
Gastric cancer is one of the most common malignancies in the world, and its overall incidence ranks fourth in malignant tumors. In different countries and regions, the incidence of gastric cancer is quite different. The countries and regions with higher incidence include Japan, Costa Rica, Peru, Brazil, China, South Korea, Chile, Taiwan, China and some former Soviet Union allies. In recent years, despite the worldwide incidence of gastric cancer overall