1. 200 Association between maternal region of origin and birth and obstetric anal sphincter injury, by length of residence: A nation-wide cohort study. (March 2022) Authors: Bains, S.; Sørbye, I.; Vangen, S.; Sundby, J.; Lindskog, B.; Owe, K. Journal: European journal of obstetrics, gynecology, and reproductive biology Issue: Volume 270(2022) Page Start: e74 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗