1. Department of Public Health and Management, University of Medicine and Pharmacy Bucharest, 020021 Bucharest, Romania
2. Quality Management Department, Emergency University Hospital Elias, 011461 Bucharest, Romania
3. Department of Fundamental, Clinical and Prophylactic Sciences, Transylvania University of Brasov, 56 Nicolae Bălcescu Street, 500019 Brasov, Romania
4. Department of Social Medicine, University of Medicine and Pharmacy Bucharest, 020021 Bucharest, Romania