1. Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA
2. Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO 80523, USA
3. Science Center Microscopy Facility, Mount Holyoke College, South Hadley, MA, USA
4. Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
5. School of Biomedical Engineering, Colorado State University, Fort Collins, CO 80523, USA