title: Fertility awareness methods of family planning: the physiological background, methodology and effectiveness of fertility awareness methods.
authors.affiliation: Health Services Research Unit, Department of Public Health, University of Oxford, Institute of Health Sciences, UK.
authors.forename: C M
authors.initials: CM
authors.lastname: Pyper
authors.forename: J
authors.initials: J
authors.lastname: Knight
mesh_terms: D005193:Family Planning Services / Q000379:methods*; D005260:Female; D005298:Fertility; D006801:Humans; D008297:Male; D010061:Ovulation Detection; D012098:Reproduction / Q000502:physiology*