Marquette Model Research
Marquette Institute for Natural Family Planning
One of the INFP's three major goals is: "To conduct research and scholarship in NFP."
Systematic Review of NFP Effectiveness
Peragallo Urrutia, R., Polis, C. B., Jensen, E. T., Greene, M. E., Kennedy, E., & Stanford, J. B. (2018). Effectiveness of fertility awareness–based methods for pregnancy prevention: A systematic review. Obstetrics & Gynecology, 132(3), 591. https://www.justisse.ca/MediaGallery/Effectiveness_of_Fertility_Awareness_Based_Methods.97985.pdf