3Dawson I M P, Comes J S Morson B C. Primary malignant lymphoid tumours of the intestinal tract: Report of 37 cases with a study of factor influencing prognosis. Br J Surg, 1961,49( 1 ): 80
4Issacson P, Wright D H. Malignant lymphoma of mucosaassociated Tissue. A distinctive type of B - cell type. Cancer, 1983,52(7): 1410
