1. NFP offers user-control, but requires discipline. Contraceptive update. Network (Research Triangle Park, N.C.;Barnett;),1996
2. New low and high tech calendar methods of family planning.;Fehring;Journal of Nurse Midwifery and Womens Health,2005
3. Efficacy of hormonal fertility monitoring as a method of natural family planning.;Fehring;Journal of Obstetric, Gynecologic Neonatal Nursing,2007
4. Cohort comparison of two fertility awareness methods of family planning.;Fehring;Journal of Reproductive Medicine,2009
5. Pilot evaluation of an Internet-based natural family planning education and service program. Journal of Obstetrics, Gynecology, and Neonatal N;Fehring;ursing,2011