1. Central Institute of Biomedical Engineering, University of Ulm, 89081 Ulm, Germany, National Aeronautics and Space Administration/Johnson Space Center, Houston, Texas 77058, Universities Space Research Association, National Aeronautics and Space Administration/Johnson Space Center, Houston, Texas 77058, Department of Zoology, Faculty of Life Sciences, Tel-Aviv University, Ramat-Aviv, 69978 Tel-Aviv, Israel, Department of Radiology and Oncotherapy, Semmelweis University of Medicine, 1082 Budapest, Hungary...