title: Letter: Nature of the hairy cell.
mesh_terms: D001402:B-Lymphocytes / Q000473:pathology; D001706:Biopsy; D006801:Humans; D007938:Leukemia / Q000097:blood / Q000473:pathology*; D008198:Lymph Nodes / Q000473:pathology; D008206:Lymphatic Diseases / Q000473:pathology*; D008214:Lymphocytes / Q000473:pathology*; D008855:Microscopy, Electron, Scanning; D013601:T-Lymphocytes / Q000473:pathology