Massad Stewart L, Wright Thomas C, Cox Thomas J, Twiggs Leo B, Wilkinson Edward
Department of Obstetrics & Gynecology, Southern Illinois University School of Medicine, PO Box 19640, Springfield, IL 62794, USA.
J Low Genit Tract Dis. 2005 Jul;9(3):146-8. doi: 10.1097/01.lgt.0000171671.48418.87.