Media type: E-Article Title: Dystocia imprint: Ovid Technologies (Wolters Kluwer Health), 1987 Published in: Clinical Obstetrics and Gynecology Language: English DOI: 10.1097/00003081-198703000-00016 ISSN: 0009-9201 Keywords: Obstetrics and Gynecology Origination: Footnote: