title: Re: Bell-Thomas and Weiner evaluation of ventouse failures in a district general hospital.
authors.forename: P
authors.initials: P
authors.lastname: Balfour
authors.forename: K A J
authors.initials: KA
authors.lastname: Chin
mesh_terms: D004868:Equipment Failure; D005260:Female; D006801:Humans; D011247:Pregnancy; D014620:Vacuum Extraction, Obstetrical / Q000295:instrumentation*