1. Department of Otolaryngology and Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
2. Department of Pathology, University of South Alabama Medical Center, Mobile, Alabama, USA
3. Department of Urology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
4. Department of Urological Oncology, Davidoff Center, Beilinson Hospital, Eliahu Hakim, Ramat Aviv, Israel
5. Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA