title: Is natural family planning a highly effective method of birth control? Yes: natural family planning is highly effective and fulfilling.
authors.forename: Crista B
authors.initials: CB
authors.lastname: Warniment
authors.forename: Kristen
authors.initials: K
authors.lastname: Hansen
mesh_terms: D005260:Female; D006801:Humans; D012252:Natural Family Planning Methods / Q000706:statistics & numerical data*; D011247:Pregnancy; D014481:United States