1. Worcester, Massachusetts, and Hadera, Israel, Hillel Yaffe Medical Center, Hadera, Israel
2. Division of Otolaryngology, Fallon Clinic, Worcester, Massachusetts, Hillel Yaffe Medical Center, Hadera, Israel
3. Otolaryngology Unit, Hillel Yaffe Medical Center, Hadera, Israel
4. Pathology Department, Hillel Yaffe Medical Center, Hadera, Israel