1. CEMES CNRS UPR 8011 and University of Toulouse, 29 rue J. Marvig, 31055 Toulouse, France
2. Laboratoire Interdisciplinaire Carnot de Bourgogne, CNRS UMR 6303, Université de Bourgogne Franche-Comté, 9 Av. A. Savary, 21000 Dijon, France
3. Department of Health Sciences and Technology, ETH Zurich, Schmelzberg-strasse 9, CH-8092 Zurich, Switzerland