Department of Otolaryngology - Head and Neck Surgery, Soroka University Medical Center and Ben Gurion University, Beer Sheva, Israel
2.Dept. f Hematology, Soroka University Medical Center and Ben Gurion University, Beer Sheva, Israel
3.Pathology Institute, Soroka University Medical Center and Ben Gurion University, Beer Sheva, Israel
4.From the Department of Otolaryngology-Head and Neck Surgery, Soroka University Medical Center; Department of Otolaryngology ñ Head and Neck Surgery Soroka University Medical Center Beer Sheva, Israel