1. Institute of Medical Physics, Biophysics, Informatics and Telemedicine, Faculty of Medicine, Comenius University , 813 72 Bratislava , Slovakia
2. Institute of Pathological Anatomy, Faculty of Medicine, Comenius University , Bratislava , Slovakia
3. Slovak University of Technology, FEI and FCHPT , Bratislava , Slovakia
4. Institute of Experimental Physics, TU Bergakademie Freiberg , Freiberg , Germany
5. Department of Chemistry, Faculty of Natural Sciences, University of SS Cyril and Methodius , Trnava , Slovakia
6. Institute of Histology and Embryology, Faculty of Medicine, Comenius University , Bratislava , Slovakia
7. Institute of Materials and Machine Mechanics, Slovak Academy of Sciences , Bratislava , Slovakia