title: Primary gastrointestinal lymphoma.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000453:epidemiology*; D006689:Hodgkin Disease / Q000453:epidemiology; D006801:Humans; D007421:Intestine, Small; D007557:Israel; D008223:Lymphoma / Q000453:epidemiology*; D008224:Lymphoma, Follicular / Q000453:epidemiology; D016403:Lymphoma, Large B-Cell, Diffuse / Q000453:epidemiology; D008228:Lymphoma, Non-Hodgkin / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D013274:Stomach Neoplasms