Affiliation: | 1. Pain Unit and Palliative Care, ZT9 ASUR MARCHE, Macerata, Italy;2. Pain Center and Palliative Care, ASO Santa Croce e Carle, Cuneo, Italy;3. Pain Unit, Parini Hospital, Aosta, Italy;4. Anaesthesia and Pain Medicine Casa di Cura Pierangeli, Pescara, Italy;5. Anaesthesia and Pain Medicine, IRCCS Istituti Clinici Humanitas, Milano, Italy |