title: Analyzing contraceptive failure.
authors.forename: J F
authors.initials: JF
authors.lastname: Kippley
mesh_terms: D003273:Contraceptive Devices; D003625:Data Collection / Q000592:standards; D004868:Equipment Failure / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008432:Mathematical Computing; D010349:Patient Compliance; D010353:Patient Education as Topic; D011247:Pregnancy; D015203:Reproducibility of Results