Clinical performances and endocrine profilles with contraceptive vaginal rings containing d-norgestrel

Contraception. 1977 Dec;16(6):625-36. doi: 10.1016/0010-7824(77)90063-4.
No abstract available

MeSH terms

  • Adolescent
  • Adult
  • Contraceptive Devices, Female*
  • Evaluation Studies as Topic
  • Female
  • Humans
  • Norgestrel* / blood
  • Vagina*

Substances

  • Norgestrel