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[10]
Obstetric anal sphincter injury, risk factors and method of delivery – an 8-year analysis across two tertiary referral centers[J] . Mark P. Hehir,Hugh D. O&rsquo,Connor,Shane Higgins,Michael S. Robson,Fionnuala M. McAuliffe,Peter C. Boylan,Fergal D. Malone,Rhona Mahony.The Journal of Maternal-Fetal & Neonatal Medicine . 2013 (15)