1. Department of Anaesthesiology and Critical Care, Hospital General Universitario De Valencia, Valencia, Spain
2. Department of Anaesthesiology Rescue- and Pain Medicine, Cantonal Hospital of St. Gallen, St. Gallen, Switzerland
3. Buddhist Teachers Europe, Starnberg, Germany
4. Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.