1. Center for Preventive Doping Research ‐ Institute of Biochemistry German Sport University Cologne Cologne Germany
2. European Monitoring Center for Emerging Doping Agents Cologne Germany
3. Department of Anesthesia, Critical Care & Pain Medicine Beth Israel Deaconess Medical Center & Harvard Medical School Boston MA USA
4. Department of Anaesthesiology University Hospital Düsseldorf Düsseldorf Germany
5. MVZ Labor Krone GbR Bad Salzuflen Germany