1. Neurology Clinic, Fundeni Clinical Institute, 022328 Bucharest, Romania
2. Department III, Dental Medicine Faculty, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
3. Institute of Mathematical Statistics and Applied Mathematics “Gheorghe Mihoc-Caius Iacob”, 050711 Bucharest, Romania
4. Nephrology Clinic, Fundeni Clinical Institute, 022328 Bucharest, Romania
5. Department 3, Medicine Faculty, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania