1. Division of Urologic Surgery, Duke University Medical Center, Durham, NC, USA
2. Department of Urology, Children’s Hospital of Michigan, Detroit, MI, USA
3. Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
4. Department of Urology, Vanderbilt University, Nashville, TN, USA
5. Centers for Disease Control and Prevention, Atlanta, GA, USA
6. Carter Consulting, Inc., Consultant to CDC, Atlanta, GA, USA
7. Department of Urology, University of Alabama at Birmingham, Birmingham, AL, USA