title: Letter: Multiple sclerosis with hypocomplementaemia.
mesh_terms: D003176:Complement C3 / Q000032:analysis / Q000172:deficiency; D003181:Complement C4 / Q000032:analysis; D003165:Complement System Proteins / Q000172:deficiency*; D006801:Humans; D009103:Multiple Sclerosis / Q000276:immunology*; D011414:Properdin / Q000032:analysis / Q000172:deficiency
chemical_list: D003176:Complement C3; D003181:Complement C4; D011414:Properdin; D003165:Complement System Proteins