title: Monoclonal gammopathy: etiology unknown.
mesh_terms: D006801:Humans; D006942:Hypergammaglobulinemia / Q000175:diagnosis* / Q000209:etiology; D007074:Immunoglobulin G; D008228:Lymphoma, Non-Hodgkin / Q000150:complications / Q000175:diagnosis; D008232:Lymphoproliferative Disorders / Q000150:complications / Q000175:diagnosis; D008297:Male; D008875:Middle Aged
chemical_list: D007074:Immunoglobulin G