1. Influence of the Duration of the Second Stage of Labor on the Likelihood of Obstetric Anal Sphincter Injury. Issue 1 (2nd December 2014) Authors: Aiken, Catherine E.; Aiken, Abigail R.; Prentice, Andrew Journal: Birth Issue: Volume 42:Issue 1(2015:Mar.) Page Start: 86 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗