Allsworth Jenifer E
Division of Clinical Research, Department of Obstetrics and Gynecology, Washington University in St. Louis School of Medicine, 4533 Clayton Ave., St. Louis, MO 63110, USA.
Sex Transm Dis. 2010 Mar;37(3):137-9. doi: 10.1097/OLQ.0b013e3181d36bdc.