[1] Univ Zurich Irchel, Inst Physiol, CH-8057 Zurich, Switzerland
[2] Univ Zurich Hosp, Dept Pathol, CH-8091 Zurich, Switzerland
[3] Univ Zurich Hosp, Cent Biol Lab, CH-8091 Zurich, Switzerland
[4] Univ Munich, Inst Physiol, D-80336 Munich, Germany
[5] Univ Clin Lubeck, Dept Anesthesiol & Physiol, D-23538 Lubeck, Germany
[6] Univ Hosp Dusseldord, Dept Cardiol, D-40225 Dusseldorf, Germany
[7] Univ Hosp Bern, Dept Clin Res, CH-3010 Bern, Switzerland
[8] Univ Basel Hosp, Dept Res & Neurol, CH-4031 Basel, Switzerland
[9] Univ Zurich, Dept Vet Internal Med, CH-8057 Zurich, Switzerland