1. Department of Biological Sciences, Illinois Institute of Technology, Chicago, IL
2. Bioengineering Research and Development Center, Kragujevac, Serbia
3. Faculty of Engineering, University of Kragujevac, Kragujevac, Serbia
4. Department of Experimental & Clinical Medicine, University of Florence, Florence, Italy
5. Department of Biosciences, University of Kent, Canterbury, Kent, UK
6. Department of Bioengineering, University of Washington, Seattle, WA