1. Bayer Pharma AG, Global Drug Discovery, Berlin 13353, Germany
2. Charité–Universitaetsmedizin Berlin, Department of Radiology 10117, Germany
3. Bayer Pharma AG, Global Drug Discovery, Berlin 13353, GermanycNOXXON Pharma AG, Drug Discovery, Berlin 10589, Germany
4. Physikalisch-Technische Bundesanstalt, Department of Biomedical Optics, Berlin 10587, GermanyeMedical School Hannover, Department of Radiotherapy and Special Oncology, Hannover 30625, Germany
5. Physikalisch-Technische Bundesanstalt, Department of Biomedical Optics, Berlin 10587, Germany