4Sendler A,Etter M,B(o)ttcher K,et al.Extent of resection in surgery of stomach carcinoma[J].Chirurg,2002,73(4):316-324.
5Nasu J,Nishina T,Hiraaaki S,et al.Predictive factors of lymph node metastasis in patients with undifferentiated early gastric cancers[J].J Clin Gastroenterol,2006,40(5):412-415.
6Tanabe H,Iwashita A,Haraoka S,et al.Clinicopathological characteristics of intramucosal gastric carcinoma with lymph node metastasis[J].Stomach Intestine(Tokyo),2006,41(8):1119-1129.
