1. Illinois Institute of Technology 1 BioCAT, Department of Biology, , Chicago, IL, USA
2. UMass Chan Medical School 2 Electron Microscopy Facility, , Worcester, MA, USA
3. Loyola University Chicago 3 Department of Cell and Molecular Physiology, , Chicago, IL, USA
4. College of Basic Medical Sciences, Dalian Medical University 4 , Dalian, China
5. University of Massachusetts Medical School 5 Division of Cell Biology and Imaging, Department of Radiology, , Worcester, MA, USA