1. Department of Geriatrics and Orthopedics, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
2. Nuclear Medicine Unit, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
3. Department of Radiological and Hematological Sciences, Section of Radiology, Università Cattolica del Sacro Cuore, Rome, Italy
4. Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy