Studies of "mini-micro" contraceptive doses of a new progestrogen.
D002582:Cervix Mucus / Q000166:cytology / Q000187:drug effects; D003276:Contraceptives, Oral / Q000008:administration & dosage* / Q000494:pharmacology; D005260:Female; D006801:Humans; D008598:Menstruation / Q000187:drug effects; D010060:Ovulation / Q000187:drug effects; D011372:Progestins / Q000008:administration & dosage* / Q000494:pharmacology
D003276:Contraceptives, Oral; D011372:Progestins