1. Clinical Department No. 3, “Carol Davila” University of Medicine and Pharmacy , 8 Eroii Sanitari Str 050474 , Bucharest , Romania
2. Department of Nephrology and Dialysis , “St. John” Emergency Clinical Hospital , 13 Vitan-Barzesti Str 421422 , Bucharest , Romania
3. Discipline of Physiology, Faculty of Dental Medicine , ‘Carol Davila’ University of Medicine and Pharmacy , 8 Eroii Sanitari Str 050474 , Bucharest , Romania