title: Association is not causation!
authors.affiliation: Obstetrics and Gynecology, Weill Medical College of Cornell University, New York, NY. Electronic address: dwskupsk@med.cornell.edu.
authors.forename: Daniel W
authors.initials: DW
authors.lastname: Skupski
mesh_terms: D001946:Breech Presentation / Q000453:epidemiology*; D036861:Delivery, Obstetric; D005260:Female; D006801:Humans; D011247:Pregnancy