1. Department of Surgical Sciences, Sapienza University of Rome, Rome, Italy.
2. Department of Sensory Organs, Sapienza University of Rome, Rome, Italy.
3. Operative Unit of Pathologic Anatomy. S. Filippo Neri Hospital, Rome, Italy.
4. Department of Anatomical, Histological, Forensic and Locomotor System Sciences, Sapienza University of Rome, Rome, Italy.