1. Department of Medicine, Conemaugh Memorial Medical Center, Johnstown, PA 15905, USA
2. Department of Anatomic and Clinical Pathology, Conemaugh Memorial Medical Center, Johnstown, PA 15905, USA
3. Department of Radiology, Conemaugh Memorial Medical Center, Johnstown, PA 15905, USA
4. Department of Otolaryngology, Conemaugh Memorial Medical Center, Johnstown, PA 15905, USA