title: Complement C4 and drug-induced SLE.
mesh_terms: D003181:Complement C4 / Q000037:antagonists & inhibitors*; D006801:Humans; D006830:Hydralazine / Q000009:adverse effects*; D007538:Isoniazid / Q000009:adverse effects*; D008180:Lupus Erythematosus, Systemic / Q000139:chemically induced* / Q000276:immunology
chemical_list: D003181:Complement C4; D006830:Hydralazine; D007538:Isoniazid