1. Bone and Stem Cell Research Group, CABMM, Zurich, University of Zurich, Switzerland
2. Centre for Medical Biotechnology, Faculty of Biology and Geography, University Duisburg-Essen, Essen, Germany
3. Institute of Physiology and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Switzerland
4. Institute of Laboratory Animal Science, University of Zurich, Zurich, Switzerland