title: Natural family planning.
abstract: A personal series of 600 private patients using natural family planning techniques is presented. The total failure rate was 4.7 pregnancies per 100 woman-years. The advantages of this method over conventional contraceptive techniques are stressed.
mesh_terms: D000328:Adult; D005193:Family Planning Services; D005260:Female; D006801:Humans; D012252:Natural Family Planning Methods; D011247:Pregnancy