1. Associate Professor and Head, Department of Anaesthesia, Spitalregion Rheintal Werdenberg Sarganserland, Walenstadt, Switzerland.
2. Resident.
3. Staff.
4. Staff, Department of Ear, Nose, Throat, and Neck Surgery, Cantonal Hospital St. Gallen.
5. Empirical Consulting, Denzlingen, Germany.
6. Deputy Head.
7. Professor and Head, Department of Anaesthesiology.