TY - BOOK AU - SULTAN, A. H. TI - Opinion – The role of anal endosonography in obstetrics Ultrasound Obstet Gynecol 2003; 22: 559-560. Published online in Wiley InterScience (www.interscience.wiley.com) DOI: 10.1002/uog.947 PY - 2003/// N1 - Monograph; held in print in library office ER -