[1] AOU Policlin San Marco Univ Hosp, Anesthesia & Intens Care, Catania, Italy
[2] Guys & St Thomas NHS Fdn Trust, Dept Anaesthesia, London, England
[3] Azienda Osped Univ St Orsola Malpighi Alma Mater, Anesthesia & Intens Care, Anestesia & Terapia Intens Polivalente, Bologna, Italy
[4] Biomed, Anesthesia & Intens Care, Anestesia Terapia Intens eTerapia Dolore, Univ Campus, Rome, Italy
[5] Osped Colli, Dipartimento Area Crit Osped Monaldi, Anesthesia & Intens Care, Naples, Italy
[6] Clin Anestesia & Rianimaz Osped Riuniti Ancona, Anesthesia & Intens Care, Ancona, Italy
[7] Osped Maggiore Crema, Anesthesia & Intens Care, Dipartimento Anestesia & Terapia Intens, Milan, Italy
[8] AOU Citta Salute & Sci, Anesthesia & Intens Care, Dipartimento Anestesia Rianimaz Emergenze, Turin, Italy
[9] Osped GB Morgagni & L Pierantoni, Anesthesia & Intens Care, Dipartimento Chirur Anestesia & Rianimaz, Forli, Italy
[10] Osped Santo Stefano Prato, Anestesia & Rianimaz, Anesthesia & Intens Care, Prato, Italy
[11] ARNAS Garibaldi Catania, Anesthesia & Intens Care, Catania, Italy
[12] ARNAS Garibaldi Catania, Dipartimento Emergenza Anesthesia & Intens Care, Catania, Italy
[13] Univ Bern, Bern Univ Hosp, Dept Anaesthesiol & Pain Therapy, Bern, Switzerland
[14] Univ Politecn Marche, Ancona, Italy
[15] Univ G dAnnunzio, Osped Chieti, Anesthesia & Intens Care, Dipartimento Med Perioperatoria Dolore Terapia In, Chieti, Italy