Key references: Deviations from the intended schedule of the contraceptive vaginal ring
- Contraception: an Australian clinical practice handbook. 4th ed. Ashfield, New South Wales: Family Planning New South Wales, Family Planning Victoria, and True Relationships and Reproductive Health; 2016.
- The Faculty of Sexual & Reproductive Healthcare (FSRH). FSRH CEU guidance: Recommended actions after incorrect use of combined hormonal contraception (e.g. late or missed pills, ring and patch). London: FSRH; 2020. https://www.fsrh.org/Common/Uploaded%20files/documents/fsrh-ceu-recommended-actions-after-incorrect-use-of-chc-march-2020-amended-jul-2021-.pdf