1. Institute of Fundamental Medicine, Kazan Federal University, Kremlevskaya St. 18, 420008 Kazan, Russia
2. Interdisciplinary Center of Analytical Microscopy, Kazan Federal University, Paris Commune St. 9, 420008 Kazan, Russia
3. Department of Molecular Pathology, NYU College of Dentistry, 345 E. 24th Street, New York, NY 10010, USA