Effect of oral contraceptive on hematocrit level.
D003276:Contraceptives, Oral / Q000494:pharmacology*; D003277:Contraceptives, Oral, Combined / Q000008:administration & dosage / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004906:Erythrocyte Count; D004912:Erythrocytes / Q000187:drug effects*; D005260:Female; D006400:Hematocrit; D006801:Humans; D007434:Intrauterine Devices; D008656:Mestranol / Q000008:administration & dosage / Q000494:pharmacology; D009641:Norethynodrel / Q000008:administration & dosage / Q000494:pharmacology; D011247:Pregnancy; D011897:Random Allocation; D014622:Vaginal Creams, Foams, and Jellies / Q000494:pharmacology
D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined; D014622:Vaginal Creams, Foams, and Jellies; D009641:Norethynodrel; D008656:Mestranol