1. Department of Anesthesiology, Foisor Orthopedics Clinical Hospital, Bulevardul Ferdinand No. 35-37, 021382 Bucharest, Romania
2. Foisor Orthopedics Clinical Hospital, Bucharest, Romania
3. “Carol Davila” University of Medicine and Pharmacy, Strada Dionisie Lupu No. 37, 020022 Bucharest, Romania