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APA Citation
Fitzpatrick, M., Cassidy, M., Barassaud, M., Hehir, M., Hanly, A., O'Connell, P., & O'Herlihy, C. (n.d.). does anal sphincter injury preclude subsequent vaginal delivery?. European journal of obstetrics, gynecology, and reproductive biology, 198, 30–34. http://access.bl.uk/ark:/81055/vdc_100096856707.0x00004d