title: Hormonal contraception, immune responses, and pelvic inflammatory disease.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Savaris
mesh_terms: D002986:Clinical Trials as Topic; D003276:Contraceptives, Oral / Q000009:adverse effects*; D003277:Contraceptives, Oral, Combined; D005260:Female; D006801:Humans; D015994:Incidence; D000292:Pelvic Inflammatory Disease / Q000453:epidemiology / Q000276:immunology*
chemical_list: D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined