Obstetrical Anal Sphincter Injuries (OASIS): Prevention, Recognition, and Repair.
Harvey MA, Pierce M, Alter JE, Chou Q, Diamond P, Epp A, Geoffrion R, Harvey MA, Larochelle A, Maslow K, Neustaedter G, Pascali D, Pierce M, Schulz J, Wilkie D, Sultan A, Thakar R; Society of Obstetricians and Gynaecologists of Canada.