1ETH Zurich, Department of Biosystems Science and Engineering, Mattenstrasse 26, 4058 Basel, Switzerland
2Division of Endocrinology and Diabetes, Stadtspital Triemli, Birmensdorferstrasse 497, CH-8063 Zurich, Switzerland
3Faculty of Medicine, University of Basel, Switzerland
4Faculty of Life Science, University of Basel, Mattenstrasse 26, CH-4058 Basel, Switzerland