1. Department of Cellular and Molecular Biology and Histology, University of Medicine and Pharmacy “Carol Davila”, Bucharest, Romania
2. Ultrastructural Pathology Laboratory, “Victor Babes” National Institute of Pathology, Bucharest, Romania
3. Department of Nephrology, University of Medicine and Pharmacy “Carol Davila”, Bucharest, Romania
4. Department of Nephrology, “Dr. Carol Davila” Teaching Hospital of Nephrology, Bucharest, Romania