1 Department of Translational and Precision Medicine, Gastroenterology Division, Sapienza University of Rome, Rome, RM, Italy.
2 Palliative Care, Pain Therapy, and Rehabilitation Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, MI, Italy.
3 Department of Medical and Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, LT, Italy. flaminia.coluzzi@uniroma1.it.
4 Anesthesiology, Intensive Care, and Pain Medicine Unit, Sant'Andrea University Hospital, Rome, RM, Italy. flaminia.coluzzi@uniroma1.it.
5 Department of Internal Medicine and Geriatry, University Hospital Policlinico Umberto I, Rome, RM, Italy.
6 Department of Medicine, Addiction Unit, University Hospital of Verona, Verona, VR, Italy.
7 Department of Anesthesiology, Pain Medicine, and Palliative care, University of L'Aquila, L'Aquila, AQ, Italy.
8 Division of Physical Medicine and Rehabilitation, Department of Surgical Sciences, University of Turin and "Città della Salute e della Scienza" University Hospital, Turin, TO, Italy.
9 Medical Oncology Unit, Clinical Cancer Center, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, RE, Italy.