PROVHILO Collaborating sites (30)
| Country | Center |
| Austria | Medical University Vienna |
| Belgium | Ghent University Hospital |
| Belgium | ZNA Middelheim, Antwerpen |
| Belgium | AZ St Jan, Brugge |
| Belgium | Virga Jesse Ziekenhuis, Hasselt |
| Chili | Hospital Clínico de la Pontificia Universidad Católica de Chile, Santiago |
| Croatia | University Hospital Sveti Duh, Zagreb |
| Germany | University Hospital Dresden |
| Germany | Düsseldorf University Hospital, Heinrich-Heine University Düsseldorf |
| Germany | University of Leipzig |
| Germany | Johannes Gutenberg - Universität Mainz |
| Germany | University Hospital of Bonn Medical School |
| Italy | University of Napoli Federico II, Naples |
| Italy | University "Magna Graecia" of Catanzaro |
| Italy | University of Foggia |
| Italy | Università degli Studi di Genova |
| Italy | Università degli Studi di Roma Cattolica |
| Italy | University of Insubria - Azienda Ospedaliera Fondazione Macchi - Ospedale di Circolo - Varese |
| Italy | Università degli Studi di Palermo |
| Italy | Azienda Sanitaria Locale TO3 - Ospedale di Rivoli, Torino |
| Italy | Università degli Studi di Udine |
| Netherlands | Academic Medical Center, University of Amsterdam |
| Spain | Hospital Universitari Germans Trias I Pujol, Barcelona |
| Spain | Hospital Santa Creu i Sant Pau, Barcelona |
| Spain | Fundación Puigvert, Barcelona |
| Spain | Consorcio Hospital General Universitario Valencia |
| United Kingdom | Sheffield Teaching Hospitals, Sheffield |
| United Kingdom | Barts Health NHS Trust, London |
| United States | Massachusetts General Hospital, Boston |
| United States | Mayo Clinic, Rochester, Minnesota |
LAS VEGAS Collaborating sites (147)
| Austria | LKH Graz: University hospital |
| Austria | AKH Linz: University hospital |
| Austria | Medical University, Vienna |
| Belgium | UCL - Cliniques Universitaires Saint Luc Brussels |
| Belgium | Ghent University Hospital |
| Belgium | Maria Middelares Gent |
| Belgium | Het ZOL (Ziekenhuis Oost Limburg) |
| Belgium | Universitary Hospital Brussels (UZ Brussel) |
| Bosnia and Herzegovina | General Hospital “prim Dr Abdulah Nakas” Sarajevo |
| Croatia | University Clinical Hospital Osijek |
| Croatia | University Hospital Rijeka |
| Croatia | University Hospital Sveti Duh |
| Croatia | University Hospital, Medical school, “Sestre milosrdnice” (Sister of Charity) |
| Croatia | University Hospital Merkur |
| Croatia | General Hospital Dr J Bencevic |
| Croatia | General Hospital Karlovac |
| Croatia | General Hospital Čakovec |
| Croatia | University Hospital Center Split |
| Czech Republic | Faculty Hospital Brno |
| Czech Republic | University Hospital Ostrava |
| Czech Republic | University Hospital Hradec Kralove |
| Czech Republic | Nemocnice Znojmo, p.o. |
| Egypt | Beni Sueif University Hospital |
| Egypt | Fayoum University Hospital |
| Egypt | Suis medical Insurance Hospital |
| Egypt | El Sahel Teaching hospital |
| Egypt | Kasr al Ainy Medical School, Cairo University |
| Estonia | Tartu University Hospital |
| Estonia | North Estonia Medical Center |
| France | Saint Eloi University Hospital, Montpellier |
| France | Institut Hospitalier Franco-Britannique |
| France | Estaing Hospital, University Hospital of Clermont-Ferrand |
| Germany | University of Leipzig |
| Germany | University Hospital Carl Gustav Carus |
| Germany | Duesseldorf University Hospital |
| Germany | Diakoniekrankenhaus Friederikenstift |
| Germany | Fachkrankenhaus Coswig Gmbh, centre for pneumology and thoracic surgery |
| Greece | Aretaieion University Hospital |
| Greece | Ahepa University Hospital Thessaloniki |
| Greece | “Alexandra” general hospital of athens |
| Greece | 251 General air force hospital |
| Greece | Attikon University Hospital |
| Israel | THE LADY DAVIS CARMEL MEDICAL CENTER |
| Italy | Ospedali Riuniti Di Foggia - University of Foggia |
| Italy | Azienda ospedaliero – Universitaria Sant’Anna (Ferrara) |
| Italy | Insubria University |
| Italy | Policlinico "P Giaccone" (University of Palermo) |
| Italy | Institute for Cancer Research and treatment |
| Italy | Ospedale San Raffaele |
| Italy | Ospedale Misericordia e Dolce - Usl4 Prato |
| Italy | Ospedale San. Paolo Bari |
| Italy | Azienda Ospedaliero-Universitaria |
| Italy | Istituto europeo di oncologia - ieo |
| Italy | University of Naples “Federico II” |
| Italy | University of Bari “Aldo Moro” |
| Italy | Ospedale Melegnano |
| Italy | Santa Maria degli Angeli |
| Italy | Azienda Ospedaliera per l’emergenza Cannizzaro |
| Italy | Ospedale Niguarda Ca'Granda Milano |
| Italy | University hospital of Sassari |
| Italy | University of Genoa |
| Italy | Ospedale San Paolo - University of Milano |
| Lithuania | Vilnius University Hospital - Santariskiu Clinics |
| Lithuania | Vilnius University Hospital - Institute of Oncology |
| Lithuania | Kaunas Medical University Hospital, Hospital of Lithuanian University of Health Sciences |
| Malta | Mater Dei Hospital |
| Netherlands | MCHaaglanden |
| Netherlands | VU University Medical Center |
| Netherlands | Westfriesgasthuis |
| Netherlands | Academic Medical Centre, University of Amsterdam |
| Norway | Haukeland University Hospital |
| Norway | Martina Hansens Hopsital |
| Norway | Førde Central Hospital /Førde Sentral Sykehus |
| Norway | Stavanger University Hospital |
| Norway | Bærum Hospital. Vestre Viken |
| Panama | Hospital Santo Tomas |
| Portugal | Santarem Hospital |
| Portugal | Hospital do Espirito Santo - Évora, E.P.E. |
| Portugal | Centro Hospitalar de Lisboa Central, EPE |
| Portugal | Centro Hospitalar de Lisboa Ocidental, E.P.E. Hospital de S. Francisco Xavier |
| Republic of Kosovo | University Clinical Center of Kosova |
| Republic of Kosovo | Distric hospital Gjakova |
| Republic of Kosovo | Regional Hospital”Prim.Dr.Daut Mustafa” |
| Romania | Hospital Profesor D Gerota |
| Romania | Spital orasenesc Bolintin Vale |
| Romania | Emergency Institute of Cardiovascular Diseases Inst. ''Prof. C. C. Iliescu'' |
| Romania | Fundeni Clinical institute - Intensive Care Unit |
| Romania | Fundeni Clinical institute - Anesthesia and Intensive Care |
| Romania | Clinical Emergency Hospital of Bucharest |
| Romania | Constanta County Emergency Hospital |
| Romania | University Emergency County Hospital Targu Mures |
| Romania | Elias University Emergency Hospital |
| Russia | Reanimatology Research Institute n.a. Negovskij RAMS |
| Russia | Krasnoyarsk State Medical University |
| Russia | Burdenko Neurosurgery Institute |
| Russia | Moscow Regional Research Clinical Institute |
| Russia | Municipal Clinical Hospital 7 |
| Serbia | Clinical Center of Vojvodina, Emergency Center |
| Slovakia | F D Roosevelt Teaching Hospital |
| Slovakia | National Cancer Institute |
| Slovakia | Faculty Hospital Nove Zamky |
| Slovakia | Oncology institute of st. Elisabeth |
| Slovenia | Institute of Oncology Ljubljana |
| Slovenia | University Medicine Centre Ljubljana |
| Spain | University of Navarra |
| Spain | Consorcio Hospital General Universitario de Valencia |
| Spain | Corporacion Sanitaria Parc Tauli |
| Spain | Hospital Santa Creu I Sant Pau |
| Spain | Hospital Clinico Valencia |
| Spain | Hospital Universitario Rio Hortega |
| Spain | Hospital Universitari Germans Trias I Pujol |
| Sweden | Centralsjukhuset Kristianstad |
| Turkey | Fatih Sultan Mehmet Eğitim Ve Araştirma Hastanesi |
| Turkey | Istanbul university, Istanbul medical faculty |
| Turkey | Selcuk University faculty of medicine |
| Turkey | Şifa University Hospital / İzmir |
| Turkey | Maltepe Univ |
| Turkey | Dokuz Eylül Universitesi Tip Fakültesi |
| Turkey | Acibadem Univ. |
| Turkey | Ufuk Univ. Hospital Ankara |
| Turkey | Akdeniz University Hospital |
| Ukraine | Institute Of Surgery And Transplantology |
| Ukraine | Zaporizhzhia State Medical University |
| United Kingdom | Derriford Hospita Plymouth Hospitals NHS Trust |
| United Kingdom | Darlington Memorial Hospital, County Durham & Darlington Foundation NHS Trust |
| United Kingdom | Royal Devon and Exeter NHS Foundation Trust |
| United Kingdom | Mid Yorkshire Hospitals NHS Trust; Pinderfields Hsopital |
| United Kingdom | Golden Jubilee National Hospital |
| United Kingdom | Royal Derby Hospital |
| United Kingdom | Barts Health NHS Trust, Royal London Hospital |
| United Kingdom | Northern Devon Healthcare NHS Trust |
| United Kingdom | South Devon Healthcare NHS Foundation Trust /Torbay Hospital, |
| United Kingdom | Royal Cornwall Hospital |
| United Kingdom | Newcastle Upon Tyne Hospitals NHS Trust The Freeman Hospital High Heaton |
| United Kingdom | Royal Surrey County Hospital NHS Foundation Trust |
| United Kingdom | Kettering General Hospital NHS Foundation Trust |
| United Kingdom | Hospital James Paget University Hospital NHS Foundation Trust |
| United Kingdom | Dorset County Hospital TBC |
| United Kingdom | Sandwell&West Birmingham NHS Trust |
| United Kingdom | Musgrove Park Hospital, TAUNTON |
| United Kingdom | Mid Staffordshire NHS |
| United Kingdom | York Teaching Hospitals NHS Foundation Trust |
| United Kingdom | The Princess Alexandra NHS Hospital Trust |
| United Kingdom | Sheffield Teaching Hospitals NHS Trust |
| United States | Mayo Clinic |
| United States | Massachusetts General Hospital, Boston, U.S.A. |
| United States | University of Colorado School of Medicine/University of Colorado Hospital |