title: [Obstetrics and the null hypothesis].
authors.forename: K P
authors.initials: KP
authors.lastname: Jakobsen
mesh_terms: D002986:Clinical Trials as Topic; D003718:Denmark; D005260:Female; D006801:Humans; D009774:Obstetrics / Q000592:standards*; D011247:Pregnancy; D011785:Quality Assurance, Health Care