title: [Extra-nodal non-Hodgkin's lymphoma].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D007564:Japan; D008223:Lymphoma / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D012878:Skin Neoplasms / Q000453:epidemiology; D013274:Stomach Neoplasms / Q000453:epidemiology*; D014067:Tonsillar Neoplasms / Q000453:epidemiology*