title: Letter: IgG subgroups in cerebrospinal fluid in multiple sclerosis.
mesh_terms: D006801:Humans; D007074:Immunoglobulin G / Q000134:cerebrospinal fluid*; D009103:Multiple Sclerosis / Q000134:cerebrospinal fluid / Q000276:immunology*
chemical_list: D007074:Immunoglobulin G