1. Department of Pediatric Nephrology, “M.S. Curie” Emergency Clinical Hospital for Children, 077120 Bucharest, Romania
2. Department of Pediatrics, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
3. Department of Internal Medicine and Rheumatology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
4. Internal Medicine and Rheumatology Department, Dr. Ion Cantacuzino Clinical Hospital, 011437 Bucharest, Romania
5. Department of Surgery, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
6. Surgery Department, Dr. Ion Cantacuzino Clinical Hospital, 011437 Bucharest, Romania