title: Contraceptive pills and local immune defense.
authors.forename: S I
authors.initials: SI
authors.lastname: Sadek
authors.forename: N
authors.initials: N
authors.lastname: Abd el-Hamid Osman
authors.forename: O
authors.initials: O
authors.lastname: Gohar
authors.forename: S M
authors.initials: SM
authors.lastname: Gaafar
authors.forename: M
authors.initials: M
authors.lastname: Salah el-Din
mesh_terms: D003277:Contraceptives, Oral, Combined / Q000494:pharmacology*; D005260:Female; D006801:Humans; D007071:Immunoglobulin A, Secretory / Q000032:analysis* / Q000276:immunology; D012463:Saliva / Q000032:analysis*
chemical_list: D003277:Contraceptives, Oral, Combined; D007071:Immunoglobulin A, Secretory