¹Cedars-Sinai Medical Center, Los Angeles, USA, ²Prometheus Laboratories, San Diego, USA

Pennine Acute Hospitals Trust, Gastroenterology, Manchester, UK

¹Connecticut Children’s Medical Center, Hartford, USA, ²Janssen Research and Development, LLC, Spring House, USA, ³Goryeb Children's Hospital/Atlantic Health, Pediatric Gastroenterology, Clinical Development and Research Affairs, Morristown, USA, ⁴The Juliet Keidan Institute of Pediatric Gastroenterology and Nutrition, Shaare Zedek Medical Center, Jerusalem, Israel, ⁵Free University Brussels, Brussels, Belgium, ⁶The Hospital for Sick Children, University of Toronto, Toronto, Canada, ⁷University of California San Francisco, Gastroenterology Division, San Francisco, USA, ⁸Seattle Children's Hospital, Seattle, USA

¹Hospital Universitario de La Princesa, Gastroenterology Unit, Madrid, Spain, ²Instituto de Investigación Sanitaria Princesa (IIS-IP), Madrid, Spain, ³Universidad Autónoma de Madrid, Madrid, Spain, ⁴Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain, ⁵Hospital Clínico y Provincial de Barcelona, Gastroenterology Unit, Barcelona, Spain, ⁶Hospital Universitario y Politécnico de La Fe, Gastroenterology Unit, Valencia, Spain, ⁷Hospital Universitario Ramón y Cajal, Gastroenterology Unit, Madrid, Spain, ⁸Hospital Universitario Puerta de Hierro, Gastroenterology Unit, Madrid, Spain, ⁹Hospital Universitario De Salamanca, Gastroenterology Unit, Salamanca, Spain, ¹⁰Hospital Universitario de Gerona Dr Josep Trueta, Gastroenterology Unit, Gerona, Spain, ¹¹Hospital Universitario Central de Asturias, Gastroenterology Unit, Oviedo, Spain, ¹²Hospital Clínico Universitario de Valencia, Gastroenterology Unit, Valencia, Spain, ¹³Complejo Hospitalario Universitario de Vigo, Gastroenterology Unit, Vigo, Spain, ¹⁴Hospital de La Santa Creu i Sant Pau, Gastroenterology Unit, Barcelona, Spain, ¹⁵Hospital Universitario de Marqués de Valdecilla, Gastroenterology Unit, Santander, Spain, ¹⁶Hospital Universitario Germans Trias i Pujol, Gastroenterology Unit, Badalona, Spain, ¹⁷Hospital Clínico Universitario de Valladolid, Gastroenterology Unit, Valladolid, Spain, ¹⁸Hospital General Universitario de Elche, Gastroenterology Unit, Elche, Spain, ¹⁹Hospital Universitario de Bellvitge, Gastroenterology Unit, Hospitalet de Llobregat, Spain, ²⁰Hospital de Galdakao-Usansolo, Gastroenterology Unit, Vizcaya, Spain, ²¹Hospital General Universitario de Alicante, Gastroenterology Unit, Alicante, Spain, ²²Hospital Universitario de Burgos, Gastroenterology Unit, Burgos, Spain, ²³Hospital Universitario Fundación Alcorcón, Gastroenterology Unit, Alcorcón, Spain, ²⁴Consorci Sanitari Terrassa, Gastroenterology Unit, Tarrasa, Spain, ²⁵Hospital Universitario de Fuenlabrada, Gastroenterology Unit, Fuenlabrada, Spain, ²⁶Complejo Hospitalario la Mancha Centro, Gastroenterology Unit, Alcázar de San Juan, Spain, ²⁷Hospital de Sant Joan Despí Moisès Broggi, Gastroenterology Unit, Sant Joan Despí, Spain, ²⁸Hospital Universitario Arnau de Vilanova, Gastroenterology Unit, Lérida, Spain, ²⁹Hospital Universitario Rio Hortega, Gastroenterology Unit, Valladolid, Spain, ³⁰Consorcio Corporación Sanitaria Parc Taulí, Gastroenterology Unit, Sabadell, Spain, ³¹Hospital Virgen de La Victoria, Gastroenterology Unit, Málaga, Spain, ³²Hospital Universitario Miguel Servet, Gastroenterology Unit, Zaragoza, Spain, ³³Hospital General Universitario de Ciudad Real, Gastroenterology Unit, Ciudad Real, Spain, ³⁴Hospital General Universitario de Castellón, Gastroenterology Unit, Castellón, Spain, ³⁵Complejo Hospitalario de Palencia, Gastroenterology Unit, Palencia, Spain, ³⁶Hospital Público General de Tomelloso, Gastroenterology Unit, Tomelloso, Spain, ³⁷Hospital Universitario Infanta Sofía, Gastroenterology Unit, San Sebastián de los Reyes, Spain, ³⁸Hospital Universitario de Torrejón, Gastroenterology Unit, Torrejón de Ardoz, Spain, ³⁹Hospital General de Segovia, Gastroenterology Unit, Segovia, Spain

¹Meir medical center, Gastroenterology, Kfar Saba, Israel, ²Tel Aviv University Sackler School of Medicine, Internal Medicine, Tel Aviv, Israel, ³Bar Ilan University, Behavioural Sciences, Tel Aviv, Israel, ⁴Meir Medical Center, Department of Gastroenterology and Hepatology, Kfar Saba, Israel

¹NHS Lothian, Gastroenterology, Edinburgh, UK, ²NHS Greater Glasgow and Clyde, Gastroenterology, Glasgow, UK, ³NHS Tayside, Gastroenterology, Dundee, UK, ⁴NHS Forth Valley, Gastroenterology, Forth Valley, UK, ⁵NHS Fife, Gastroenterology, Kirkcaldy, UK, ⁶NHS Lanarkshire, Gastroenterology, Lanarkshire, UK, ⁷NHS Highlands, Gastroenterology, Inverness, UK, ⁸NHS Highlands, Colorectal Surgery, Inverness, UK ¹Hospital Universitario Puerta de Hierro Majadahonda, IBD Unit, Gastroenterology and Hepatology Department, Majadahonda, Madrid, Spain, ²Hospital Universitario Puerta de Hierro Majadahonda, IBD Unit, Colorectal Surgery Department., Majadahonda, Madrid, Spain, ³Centro de Gastroenterologia, Ciudad Sanitaria Dr. Luis E. Aybar, IBD Unit. Gastroenterology and Hepatology Department, Santo Domingo, Spain, ⁴Hospital Universitario Puerta de Hierro Majadahonda, Clinical Biostatistics Unit, Biomedical Sciences Research Institute Puerta de Hierro, Majadahonda, Madrid, Spain

¹Medical University of Vienna, Department of Internal Medicine III, Gastroenterology and Hepatology, Vienna, Austria, ²Christian Albrechts University Kiel, Department of General Internal Medicine I; Institute of Clinical Molecular Biology, Kiel, Germany, ³Celltrion Healthcare Co. Ltd., Incheon, South Korea, ⁴Projections Research, Inc., Projections Research Inc., Phoenixville, USA

¹Manchester Royal Infirmary, Department of Gastroenterology, Manchester, UK, ²Instituto Portugues de Oncologia de Lisboan Francisco Gentil, Lisboa, Portugal, ³Gastroenterologia-U, Città della Salute e della Scienza di Torino, Turin, Italy, ⁴Robert-Bosch Hospital, Gastroenterology Department, Stuttgart, Germany, ⁵Servicio Aparato Digestivo, Hospital Clínico San Carlos, IBD unit, Madrid, Spain, ⁶University Hospitals Leuven, Gastroenterology Department, Leuven, Belgium, ⁷Kremlin Bicêtre Hospital, AP-HP, University Paris Sud, Gastroenterology Department, Paris, France, ⁸Ospedale S. Filippo Neri, Gastroenterology Department, Rome, Italy, ⁹Bellvitge's hospital, Gastroenterology Department, Barcelona, Spain, ¹⁰Centro Hospitalar do Porto, Gastroenterology Department, Porto, Portugal, ¹¹University of Padua, Padua, Italy, ¹²Mater Dei Hospital, Msida, Malta, ¹³The Maria Sklodowska Curie Memorial Cancer Centre and Institute of Oncology, Gastroenterology Department, Warsaw, Poland, ¹⁴Triemli Hospital, Zurich, Switzerland, ¹⁵Hospital Universitario Puerta de Hierro Madrid, Madrid, Spain, ¹⁶University of Crete, Heraklion, Greece, ¹⁷Radboud University Medical Center, Nijmegen, The Netherlands, ¹⁸Clínico Universitario de Valladolid, Valladolid, Spain, ¹⁹UOC Gastroenterologia, Ospedale San Giuseppe, Florence, Italy, ²⁰Hospital Universitari Germans Trias i Pujol in Badalona, Barcelona, Spain, ²¹Theagenion Cancer Hospital of Thessaloniki, Thessaloniki, Greece, ²²Charité-Universitätsmedizin Berlin, Berlin, Germany, ²³Clinique de Bercy, Paris, France, ²⁴RCCS Istituto Clinico Humanitas, Gastroenterology Department, Rozzano, Milan, Italy, ²⁵For ECCO CONFER Steering Committee, Vienna, Austria

¹IBD Center, Division of Gastroenterology, Rabin Medical Center, Petah Tikva, Israel, ²Sackler Faculty of Medicine, Tel Aviv Israel, Tel Aviv, Israel, ³Rabin Medical Center, Division of Gastroenterology, Petah Tikva, Israel, ⁴Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel, ⁵Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel

Amgen Inc., Biosimilars, Thousand Oaks, USA

¹Western University, Department of Medicine, London, Ontario, Canada, ²Robarts Clinical Trials Inc., London, Ontario, Canada, ³IQVIA, London, UK, ⁴Takeda International–UK Branch, London, UK

¹Karolinska Institutet, Department of Medicine, Solna, Unit of Internal Medicine, Stockholm, Sweden, ²Karolinska University Hospital, Gastroenterology Unit, Patient Area Gastroenterology, Dermatovenereology and Rheumatology, Stockholm, Sweden, ³Karolinska University Hospital, Department of Clinical Nutrition, Stockholm, Sweden

¹Uppsala University, Medical Sciences, Uppsala, Sweden, ²Karolinska Institutet, Medicine, Stockholm, Sweden, ³Karolinska Institutet, Women's and Children's Health, Stockholm, Sweden

¹Irving National Intestinal Failure Unit, Salford Royal NHS Foundation Trust, Surgery, Manchester, UK, ²Irving National Intestinal Failure Unit, Salford Royal NHS Foundation Trust, Gastroenterology, Manchester, UK

¹Toho University, Sakura Medical Center, Department of Internal Medicine, Division of Gastroenterology and Hepatology, Sakura-shi, Chiba, Japan, ²AbbVie GK, Tokyo, Japan, ³Kitasato University Kitasato Institute Hospital, IBD Centre, Tokyo, Japan

¹University of Szeged, 1st Department of Internal Medicine, Szeged, Hungary, ²University of Szeged, Institute of Laboratory Medicine, Szeged, Hungary, ³University of Szeged, Department of Medical Physics and Informatics, Szeged, Hungary, ⁴University of Debrecen, Department of Laboratory Medicine, Debrecen, Hungary, ⁵University of Debrecen, Department of Internal Medicine, Debrecen, Hungary, ⁶University of Debrecen, 2nd Department of Internal Medicine, Debrecen, Hungary

¹McGill University Health Center, Department of Gastroenterology, Montreal, Canada, ²Geneva’s University Hospitals and University of Geneva, Division of Gastroenterology and Hepatology, Geneva, Switzerland, ³Semmelweis University, First Department of Medicine, Budapest, Hungary

Adelaide and Meath, Incorporating National Childrens' Hospital, Tallaght, Department of Gastroenterology, Tallaght Hospital, Dublin and Department of Clinical Medicine, TCD, Dublin, Ireland

¹Moscow Clinical Research Center, Department of Inflammatory Bowel Disease, Moscow, Russian Federation, ²Medical Radiological Scientific Center, Department of Stem Cells Therapy, Obninsk, Russian Federation

Centro Hospitalar de Vila Nova de Gaia e Espinho, Vila Nova de Gaia, Portugal