1. Department of Physics and Astronomy, University of Missouri-Columbia, Columbia, MO 65211, USA
2. Department of Biophysics, University of Pecs, H-7624, Hungary
3. Institute of Medicine and Engineering, Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
4. Pulmonary, Critical Care and Sleep Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA
5. Department of Biological Sciences, University of Missouri-Columbia, Columbia, MO 65211, USA