S.P.Ri.M.A.C.C. Collaborative Group: Goran Augustin (1), Trpimir Morić (1), Selmy Awad (2), Azzah M Alzahrani (2), Mohamed Elbahnasawy (3), Damien Massalou (4), Belinda De Simone (5), Zaza Demetrashvili (6), Athina-Despoina Kimpizi (7), Dimitrios Schizas (8), Dimitrios Balalis (9), Nikolaos Tasis (10), Maria Papadoliopoulou (11), Petrakis Georgios (12), Konstantinos Lasithiotakis (13), Orestis Ioannidis (14), Lovenish Bains (15), Matteo Magnoli (16), Pasquale Cianci (17), Nunzia Ivana Conversano (17), Alessandro Pasculli (18), Jacopo Andreuccetti (19), Elisa Arici (19), Giusto Pignata (19), Guido A.M. Tiberio (20), Mauro Podda (21), Cristina Murru (22), Massimiliano Veroux (23),Costanza Distefano (23), Danilo Centonze (23), Francesco Favi (24), Raffaele Bova (24), Girolamo Convertini (24), Andrea Balla (25), Diego Sasia (26), Giorgio Giraudo (26), Anania Gabriele (27), Nicola Tartaglia (28), Giovanna Pavone (28), Fabrizio D'Acapito (29), Nicolò Fabbri (30), Francesco Ferrara (31), Stefania Cimbanassi (32), Luca Ferrario (32), Stefano Cioffi (32), Marco Ceresoli (33), Chiara Fumagalli (33), Luca Degrate (33), Maurizio Degiuli (34), Silvia Sofia (34), Leo Licari (35), Mario Improta (36), Alberto Patriti (37),Diego Coletta (37), Luigi Conti (38), Michele Malerba (39), Muratore Andrea (40), Marcello Calabrò (40), Beatrice De Zolt (40), Gabriele Bellio (41), Alessio Giordano (42), Davide Luppi (43), Carlo Corbellini (44),Gianluca Matteo Sampietro (44), Chiara Marafante (45), Stefano Rossi (46), Andrea Mingoli (47), Pierfrancesco Lapolla (47), Pierfranco M Cicerchia (47), Leandro Siragusa (48), Michele Grande (48), Claudio Arcudi (49), Amedeo Antonelli (49), Danilo Vinci (49), Ciro De Martino (50), Mariano Fortunato Armellino (50), Enrica Bisogno (50), Diego Visconti (51), Mauro Santarelli (51), Elena Montanari (51), Alan Biloslavo (52), Paola Germani (52), Claudia Zaghi (53), Naoki Oka (54), Mohd Azem Fathi (55), Daniel Ríos-Cruz (56), Edgard Efren Lozada Hernandez (57), Ibrahim Umar Garzali (58), Liliana Duarte (59), Ionut Negoi (60), Andrey Litvin (61), Sharfuddin Chowdhury (62), Salem M. Alshahrani (62), Silvia Carbonell-Morote (63), Juan J. Rubio-Garcia (63), Claudia Cristina Lopes Moreira (64), Iñigo Augusto Ponce (64), Fernando Mendoza-Moreno (65), Anna Muñoz Campaña (66), Heura Llaquet Bayo (66), Andrea Campos Serra (66), Aitor Landaluce (67), Begoña Estraviz-Mateos (67), Izaskun Markinez-Gordobil (67), Mario Serradilla-Martín (68), Antonio Cano-Paredero (68), Miguel Ángel Dobón-Rascón (68), Hytham Hamid (69), Oussama Baraket (70), Emre Gonullu (71), Sezai Leventoglu (72), Yilmaz Turk (72), Çağrı Büyükkasap (72), Ulaş Aday (73), Yasin Kara (74), Hamit Ahmet Kabuli (75), Semra Demirli Atici (76), Elif Colak (77), Serge Chooklin (78), Serhii Chuklin (78), Federico Ruta (79)

(1) Department of Surgery, University Hospital Centre Zagreb, Zagreb, Croatia

(2) Department of General Surgery, Mansoura University Hospitals, Mansoura, Egypt

(3) University Faculty of Medicine, Tanta, Egypt

(4) Acute care surgery, CHU de Nice, Nice, France

(5) Dpt of Emergency, Digestive and Metabolic Minimally invasive surgery, Poissy and Saint Germain en Laye Hospitals, Poissy, France

(6) State Medical University, Tbilisi, Georgia

(7) Hippocration General Hospital of Athens, Athens, Greece

(8) National and Kapodistrian University of Athens, Laikon General Hospital, Athens, Greece

(9) Saint Savvas Cancer Hospital, Athens, Greece

(10) Naval and Veterans Hospital, Department of Surgery, Athens, Greece

(11) University General Hospital Attikon-UoA, Chaidari, Greece

(12) Surgery Department, General Hospital of Chania—Saint George, Crete, Greece

(13) Surgery University Hospital of Heraklion, Medical School of Heraklion, Crete, Greece

(14) General Hospital George Papanikolaou, Thessaloniki, Greece

(15) Maulana Azad Medical College, New Delhi, India

(16) Chirurgia generale, Ospedale Monsignor Galliano, Acqui terme, Italy

(17) Lorenzo Bonomo Hospital, Andria, Italy

(18) University of Bari, Bari, Italy

(19) Chirurgia 2, ASST Spedali Civili of Brescia, Brescia, Italy

(20) Surgical Clinic, University of Brescia, Brescia, Italy

(21) Department of Surgical Science, University of Cagliari, Cagliari, Italy

(22) PO Santissima Trinità, Cagliari, Italy

(23) Azienda Policlinico Università di Catania, Catania, Italy

(24) Bufalini Hospital, Cesena, Italy

(25) UOC of General and Minimally Invasive Surgery, San Paolo Hospital, Civitavecchia, Italy

(26) Azienda Ospedaliera Santa Croce e Carle, Cuneo, Italy

(27) Azienda Ospedaliero-Universitaria di Ferrara, Arcispedale Sant'Anna, Ferrara, Italy

(28) University Hospital, Foggia, Italy

(29) Ospedale Morgagni Pierantoni, Forlì, Italy

(30) Ospedale del Delta, Lagosanto, Italy

(31) ASST Santi Paolo e Carlo, Milano, Italy

(32) Chirurgia generale Trauma team, Ospedale Niguarda, Milano, Italy

(33) General and Emergency Surgery, School of Medicine and Surgery, Milano-Bicocca University, Monza, Italy

(34) Surgical oncology and digestive surgery, A.O.U. San Luigi Gonzaga, Orbassano, Italy

(35) FBF Buccheri La Ferla, Palermo, Italy

(36) Fondazione IRCCS Policlinico San Matteo, Pavia, Italy

(37) AO Ospedali Riuniti Marche Nord, Pesaro, Italy

(38) G, Da Saliceto Hospital, Piacenza, Italy

(39) ASL2 Savonese, Pietra Ligure, Italy

(40) Chirurgia generale Ospedale E. Agnelli, Pinerolo, Italy

(41) Ospedale Immacolata Concezione, Piove di Sacco, Italy

(42) "S.Stefano" New Hospital, Prato, Italy

(43) ASMN, Reggio Emilia, Italy

(44) Ospedale di Rho—ASST Rhodense, Rho, Italy

(45) Chirurgia Generale Ospedale degli Infermi, Rivoli, Italy

(46) San Filippo Neri Hospital, Roma, Italy

(47) Policlinico Umberto I Sapienza, Roma, Italy

(48) University Tor Vergata, Roma, Italy

(49) UOC Chirurgia Bariatrica, Ospedale San Carlo di Nancy, Roma, Italy

(50) University Hospital "S. Giovanni di Dio e Ruggi d'Aragona", Salerno, Italy

(51) Chirurgia Generale d'Urgenza e PS, AOU Città della Salute e della Scienza, Torino, Italy

(52) General Surgery Department, Cattinara University Hospital, ASUGI, Trieste, Italy

(53) Ospedale San Bortolo, Vicenza, Italy

(54) Kurashiki Central Hospital, Kurashiki, Japan

(55) Department of Surgery, Hospital Universiti Sains Malaysia, Kota Bharu, Malaysia

(56) Instituto Mexicano del seguro social, Ciudad de México, Mexico

(57) Regional Hospital of High Speciality of Bajio, Leon Guanajuato, Mexico

(58) Aminu Kano Teaching Hospital, Kano, Nigeria

(59) Centro Hospitalar Tondela-Viseu, Viseu, Portugal

(60) Emergency Hospital of Bucharest, Bucharest, Romania

(61) Immanuel Kant Baltic Federal University, Regional Clinic Hospital, Kaliningrad, Russia

(62) General Surgery, King Saud Medical City, Riyadh, Saudi Arabia

(63) Department of Surgery and Liver Transplantation. Hospital General Universitario Dr. Balmis, Alicante, Spain

(64) Hospital universitario Donostia, Donostia-San Sebastian, Spain

(65) Hospital Universitario Príncipe de Asturias, Madrid, Spain

(66) Emergency Surgery Unit, Parc Tauli Hospital, Sabadell, Spain

(67) Urduliz Hospital, Urduliz, Spain

(68) Department of Surgery, Miguel Servet University Hospital, Zaragoza, Spain

(69) Kuwaiti Specialized Hospital, Khartoum, Sudan

(70) Bizerte hospital, Bizerte, Tunis

(71) Sakarya Training and Research Hospital, Adapazari/Sakarya, Turkey

(72) Gazi University, School of Medicine, Department of Surgery, Ankara, Turkey

(73) Department of Gastroenterological Surgery, Dicle University School of Medicine, Diyarbakir, Turkey

(74) Kanuni Sultan Süleyman Training and Research Hospital, Instanbul, Turkey

(75) Bakirkoy Dr Sadi Konuk Training and Research Hospital, Instanbul, Turkey

(76) Tepecik Training and Research Hospital, Konak/İzmir, Turkey

(77) Samsun Training and Research Hospital, Samsun, Turkey

(78) Regional Clinical hospital, Lviv, Ukraine

(79) Nursing Directorship, ASL BAT, Andria, Italy