1. Department of Industrial Engineering and Management, Jerusalem College of Technology, Jerusalem, Israel.
2. Department of Otolaryngology, Head and Neck Surgery, Rambam Health Care Center, Haifa, Israel.
3. ENT Department, Royal Hampshire County Hospital, Winchester, United Kingdom.
4. Department of Otolaryngology, Head and Neck Surgery, HNO Wiedikon, ENT, Zurich, Switzerland.
5. Department of Otolaryngology, Head and Neck Surgery, See-Spital Kilchberg, Kilchberg, Switzerland.