1. Department of Microgravity and Translational Regenerative Medicine, Otto von Guericke University, 39106 Magdeburg, Germany
2. Research Group “Magdeburger Arbeitsgemeinschaft für Forschung unter Raumfahrt- und Schwerelosigkeitsbedingungen” (MARS), Otto von Guericke University, 39106 Magdeburg, Germany
3. Institute of Anatomy, Otto von Guericke University, 39120 Magdeburg, Germany
4. Core Facility Tissue Engineering, Otto von Guericke University, 39106 Magdeburg, Germany
5. Department of Biomedicine, Aarhus University, 8000 Aarhus, Denmark