title: Letter: Classification of non-Hodgkin's lymphomas.
mesh_terms: D001402:B-Lymphocytes / Q000166:cytology; D006801:Humans; D008213:Lymphocyte Activation; D008223:Lymphoma / Q000145:classification* / Q000175:diagnosis / Q000276:immunology / Q000473:pathology; D008224:Lymphoma, Follicular / Q000145:classification; D013601:T-Lymphocytes / Q000166:cytology; D009626:Terminology as Topic