title: [Letter: Vitamin B 12 deficiency and monoclonal gammapathies].
mesh_terms: D000368:Aged; D000748:Anemia, Macrocytic / Q000150:complications; D000752:Anemia, Pernicious / Q000150:complications; D004406:Dysgammaglobulinemia / Q000150:complications*; D005260:Female; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis; D007153:Immunologic Deficiency Syndromes / Q000150:complications*; D009101:Multiple Myeloma / Q000150:complications; D014806:Vitamin B 12 Deficiency / Q000150:complications*
chemical_list: D007136:Immunoglobulins
vernacular_title: Lettre: Carence en vitamine B12 et gammapathies monoclonales