TY  - BOOK
AU  - Roos AM
AU  - Thakar R
AU  - Sultan AH
TI  - Outcome of primary repair of obstetric anal sphincter injuries (OASIS): does the grade of tear matter? Ultrasound Obstet Gynecol. 2010 Sep;36(3):368-74
PY  - 2010///
N1  - Monograph
ER  -