title: Serum haemolytic complement levels of women using fertility regulating agents.
mesh_terms: D000328:Adult; D003165:Complement System Proteins / Q000032:analysis*; D003276:Contraceptives, Oral / Q000009:adverse effects* / Q000378:metabolism; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D013245:Sterilization, Reproductive
chemical_list: D003276:Contraceptives, Oral; D003165:Complement System Proteins