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  1. A Comparison of User Behaviors for a Fertility-Tracking App: Does Training in an NFP Method Improve Persistence and Use?

    Article • The Linacre Quarterly, September 2019, SAGE Publications

    Michael Manhart

  2. State of the Science of NFP 50 years after Humanae vitae

    Article • The Linacre Quarterly, November 2018, SAGE Publications

    Michael Manhart