The mass-screening of gastric cancer has been carried out for years in Shanghai. A huge number of data and samples have been accumulated in this work. But there are still difficulties in the diagnosis of gastric cance...The mass-screening of gastric cancer has been carried out for years in Shanghai. A huge number of data and samples have been accumulated in this work. But there are still difficulties in the diagnosis of gastric cancer in early stage. The diagnosis of展开更多
文摘The mass-screening of gastric cancer has been carried out for years in Shanghai. A huge number of data and samples have been accumulated in this work. But there are still difficulties in the diagnosis of gastric cancer in early stage. The diagnosis of