1. Stem Cell and Regenerative Medicine Group, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran;
2. National Cell Bank, Pasteur Institute of Iran, Tehran, Iran;
3. Neuroscience Research Center, Faculty of Medicine, Guilan University of Medical Sciences, Rasht, Iran;
4. Department of Anatomy and Cell Biology, McGill University, Montréal, QC, Canada;
5. Facility for Electron Microscopy Research, McGill University, Montréal, QC, Canada