¹University of Ulsan College of Medicine, Asan Medical Center, Department of Gastroenterology and Inflammatory Bowel Disease Center, Seoul, South Korea, ²National Institute of Medical Sciences and Nutrition, Department of Gastroenterolgy, Mexico city, Mexico, ³Takeda Pharmaceutical International AG Singapore branch, Singapore, Singapore, ⁴Takeda International - UK Branch, London, UK, ⁵Peking Union Medical College Hospital, Beijing, China, ⁶Federal State Budgetary Institution ‘State Scientific Center of Coloproctology n.a. A.N. Rizhikh’ of the Ministry of Public Health of Russian Federation, Inflammatory and Functional Bowel Diseases Research Unit, Moscow, Russian Federation, ⁷National Taiwan University, Taipei, Taiwan, ⁸Ankara University School of Medicine, Department of Gastroenterology, Ankara, Turkey, ⁹King Khalid University Hospital , King Saud University, Department of Medicine, Riyadh, Saudi Arabia, ¹⁰Singapore General Hospital, Department of Gastroenterology and Hepatology, Singapore, Singapore, ¹¹Fundación CardioInfantil, Instituto de Cardiología, Bogota, Colombia, ¹²IQVIA, Saint Ouen, France, ¹³IQVIA, Makati City, Philippines, ¹⁴PRA Health Sciences, Global Medical Affairs – Research, Europe Development Centre, Takeda International – UK Branch, London, UK, ¹⁵Presidio Columbus Fondazione Policlinico A. Gemelli IRCCS – Università Cattolica del Sacro Cuore, Rome, Italy

¹Interdisciplinary Crohn Colitis Centre Rhein-Main, Frankfurt/Main, Germany, ²Hacettepe University, Ankara, Turkey, ³DGD Clinics Sachsenhausen, Frankfurt/Main, Germany, ⁴Agaplesion Markuskrankenhaus, Frankfurt/Main, Germany

¹Hospital Sant Joan de Déu, Unit for Comprehensive Care of Pediatric Inflammatory Bowel Disease, Pediatric Gasatroneterology, Hepatology and Nutrition Unit, Barcelona, Spain, ²Hospital Sant Joan de Déu, Unit for the Comprehensive Care of Pediatric Inflammatory Bowel Disease, Department of Pediatric Surgery, Barcelona, Spain

¹Amsterdam University Medical Centers, Amsterdam, The Netherlands, ²Mayo Clinic, Rochester, USA, ³University of Michigan, Ann Arbor, USA, ⁴Hospital Clínic Barcelona, IDIBAPS, CIBERehd, Barcelona, Spain, ⁵University of Calgary, Calgary, Canada, ⁶AbbVie Inc., North Chicago, USA, ⁷University Hospital Leuven, Leuven, Belgium

¹Hospital Clínic de Barcelona, Gastroenterology Department, Barcelona, Spain, ²‘Fundación Jiménez Díaz’ University Hospital, Autonomous University of Madrid, Department of Surgery, Madrid, Spain, ³Takeda Pharmaceuticals International AG, Zurich, Switzerland, ⁴Takeda Spain, Madrid, Spain

¹Hospital Universitari Germans Trias i Pujol, Gastroenterology Department, Badalona, Spain, ²CIBERehd, Madrid, Spain, ³Hospital Clínic, Barcelona, Spain, ⁴Hospital La Fe de Valencia, Valencia, Spain, ⁵Hospital Reina Sofía, Córdoba, Spain, ⁶Hospital Puerta de Hierro, Majadahonda, Spain, ⁷Hospital Ramón y Cajal, Madrid, Spain, ⁸Hospital de Bellvitge, L'Hospitalet del Llobregat, Spain, ⁹Hospital Clínico San Carlos, Madrid, Spain, ¹⁰Hospital Clínico de Valencia, Valencia, Spain, ¹¹Hospital La Paz, Madrid, Spain, ¹²Complexo H. Universitario de Vigo, Vigo, Spain, ¹³H.U. Central de Asturias, Oviedo, Spain, ¹⁴H.U. Marqués de Valdecilla, Santander, Spain, ¹⁵H. Santa Creu i Sant Pau, Barcelona, Spain, ¹⁶H. Parc Taulí, Sabadell, Spain, ¹⁷H.U. Miguel Servet, Zaragoza, Spain, ¹⁸Hospital del Mar, Barcelona, Spain, ¹⁹H. Clínico Lozano Blesa, Zaragoza, Spain, ²⁰H. Río Hortega, Valladolid, Spain, ²¹H. Mútua de Terrassa, Terrassa, Spain, ²²H.U. Salamanca, Salamanca, Spain, ²³Hospital Universitario de La Princesa, Madrid, Spain, ²⁴H.G.U. Alicante, Alicante, Spain, ²⁵H. Manises, Manises, Valencia, Spain, ²⁶H. Virgen de la Macarena, Sevilla, Spain, ²⁷H. Dr. Josep Trueta, Girona, Spain, ²⁸H. Donostia, Donostia, Spain, ²⁹H.U. Fundación de Alcorcón, Alcorcón, Spain, ³⁰Complejo Hosp. Burgos, Burgos, Spain, ³¹H. de Cruces, Cruces-Barakaldo, Spain, ³²H. 12 de Octubre, Madrid, Spain, ³³H.U. Fuenlabrada, Fuenlabrada, Spain, ³⁴H. General de Ciudad Real, Ciudad Real, Spain, ³⁵H. Clínico Santiago, Santiago, Spain, ³⁶Complejo Hospitalario de Navarra, Pamplona, Spain, ³⁷H.G.U. Elche, Elche, Spain, ³⁸Consorci Sanitari de Terrassa, Terrassa, Spain, ³⁹H. Santa Lucía Cartagena, Cartagena, Spain, ⁴⁰H. Nuestra Sra. de la Candelaria, Santa Cruz de Tenerife, Spain, ⁴¹H. Mancha Centro, Alcázar de San Juan, Spain, ⁴²H. Sant Joan de Déu – Althaia, Manresa, Spain, ⁴³H. Clínico de Málaga, Virgen de la Victoria, Spain, ⁴⁴Hospital Son Llàtzer, Palma De Mallorca, Spain, ⁴⁵Complejo Hospitalario de León, León, Spain, ⁴⁶H. Clínico Univ. Valladolid, Valladolid, Spain, ⁴⁷H. General de Granollers, Granollers, Spain, ⁴⁸H. Moisès Broggi, St Joan Despí, Spain, ⁴⁹H. San Jorge, Huesca, Spain, H. Basurto, Bilbao, Spain, H. General de Tomelloso, Ciudad Real, Spain, H. Torrejón, Madrid, Spain, H. de Galdakao, Vizcaya, Spain, H.G.U. de Valencia, Valencia, Spain, H.U. Canarias, La Laguna, Spain, H.U. Áraba, Vitoria, Spain, H. General de Castelló, Castelló, Spain, H. Infanta Sofía, San Sebastián de los Reyes, Spain, H. Son Espases, Mallorca, Spain, Complejo Hospitalario de Palencia, Palencia, Spain, H.U. Arnau de Vilanova, LLeida, Spain, Complejo Hospitalario de Jaén, Jaén, Spain, H. General de Segovia, Segovia, Spain, H. Viladecans, Viladecans, Spain

¹IBD Unit, ‘Villa Sofia-Cervello’ Hospital, Palermo, Italy

¹Hospital Universitario de La Princesa, IIS-IP , Universidad Autónoma de Madrid and CIBEREHD, Gastroenterology Unit, Madrid, Spain, ²Hospital Clínico Universitario de Valencia, Gastroenterology Unit, Valencia, Spain, ³Hospital Clínic i Provincial, CIBEREHD and IDIBAPS, Gastroenterology Unit, Barcelona, Spain, ⁴Hospital Universitario Clínico San Carlos, Gastroenterology Unit, Madrid, Spain, ⁵Hospital Universitario Miguel Servet and CIBEREHD, Gastroenterology Unit, Zaragoza, Spain, ⁶Hospital Universitario de Bellvitge, Gastroenterology Unit, Barcelona, Spain, ⁷Hospital Universitario Ramón y Cajal, Gastroenterology Unit, Madrid, Spain, ⁸Hospital Universitario Reina Sofía, Gastroenterology Unit, Córdoba, Spain, ⁹Hospital Universitario y Politécnico La Fe and CIBEREHD, Gastroenterology Unit, Valencia, Spain, ¹⁰Hospital Universitario de Burgos, Gastroenterology Unit, Burgos, Spain, ¹¹Hospital Universitario Puerta de Hierro Majadahonda, Gastroenterology Unit, Madrid, Spain, ¹²Hospital de Manises, Gastroenterology Unit, Valencia, Spain, ¹³Hospital Universitario Central de Asturias, Gastroenterology Unit, Oviedo, Spain, ¹⁴Hospital Universitario Germans Trias i Pujol and CIBEREHD, Gastroenterology Unit, Badalona, Spain, ¹⁵Hospital de Sabadell. Corporació Sanitària Universitària Parc Taulí and CIBEREHD, Gastroenterology Unit, Sabadell, Spain, ¹⁶Hospital Universitario Fundación de Alcorcón, Gastroenterology Unit, Madrid, Spain, ¹⁷Hospital Universitario La Paz and Instituto de Investigación de La Paz (IdiPaz), Gastroenterology Unit, Madrid, Spain, ¹⁸Hospital Universitari de Girona Dr. Josep Trueta, Gastroenterology Unit, Gerona, Spain, ¹⁹Hospital Universitario Marqués de Valdecilla and IDIVAL, Gastroenterology, Santander, Spain, ²⁰Consorci Sanitari Terrassa, Gastroenterology, Tarrasa, Spain, ²¹Hospital Universitario Río Hortega, Gastroenterology, Valladolid, Spain, ²²Hospital Universitario Mutua Terrasa, Gastroenterology Unit, Tarrasa, Spain, ²³Hospital del Mar, Gastroenterology Unit, Barcelona, Spain, ²⁴Hospital General Universitario de Ciudad Real and CIBEREHD, Gastroenterology Unit, Ciudad Real, Spain, ²⁵Hospital de la Santa Creu i Sant Pau, Gastroenterology Unit, Barcelona, Spain, ²⁶Complejo Hospitalario Universitario de Vigo, Gastroenterology Unit, Vigo, Spain, ²⁷Hospital Universitario de Fuenlabrada and Instituto de Investigación de La Paz (IdiPaz), Gastroenterology Unit, Madrid, Spain, ²⁸Hospital Universitario Cruces, Baracaldo, Spain, ²⁹Hospital Clínico Universitario de Salamanca, Gastroenterology Unit, Salamanca, Spain, ³⁰Hospital Universitario Doce de Octubre, Gastroenterology Unit, Madrid, Spain, ³¹Hospital de Torrejón, Gastroenterology Unit, Madrid, Spain, ³²Hospital Universitario Virgen de la Victoria, Gastroenterology Unit, Málaga, Spain, ³³Hospital General San Jorge, Gastroenterology Unit, Huesca, Spain, ³⁴Hospital de Basurto, Gastroenterology Unit, Bilbao, Spain, ³⁵Hospital Clínico Universitario Lozano Blesa, Gastroenteroogy Unit, Zaragoza, Spain, ³⁶Hospital Clínico Universitario de Valladolid, Gastroenterology Unit, Valladolid, Spain, ³⁷Hospital General Universitario de Elche, Gastroenterology Unit, Elche, Spain, ³⁸Hospital de Galdakao-Usansolo, Gastroenterology Unit, Galdakao, Spain, ³⁹Hospital General Universitario de Alicante and CIBEREHD, Gastroenterology Unit, Alicante, Spain, ⁴⁰Hospital Universitario Virgen Macarena, Gastroenterology Unit, Sevilla, Spain, ⁴¹Complejo Hospitalario de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), Gastroenterology Unit, Pamplona, Spain, ⁴²Hospital Universitario Nuestra Señora de la Candelaria, Gastroenterology Unit, Santa Cruz de Tenerife, Spain, ⁴³Hospital Universitario de Donostia, Instituto Biodonostia, Universidad del País Vasco (UPV/EHU) and CIBEREHD, Gastroenterology Unit, San Sebastián, Spain, ⁴⁴ALTHAIA Xarxa Assistencial Universitària de Manresa, Gastroenterology Unit, Manresa, Spain, ⁴⁵Hospital Universitario de Cabueñes, Gastroenterology Unit, Gijón, Spain, ⁴⁶Hospital Universitario de Canarias, Gastroenterology Unit, La Laguna, Spain, ⁴⁷Consorcio Hospital General Universitario de Valencia, Gastroenterology Unit, Valencia, Spain, ⁴⁸Hospital General Universitario de Castellón, Gastroenterology Unit, Castellón, Spain, ⁴⁹Hospital General Universitario de Santa Lucía, Gastroenterology Unit, Murcia, Spain, Hospital de Sant Joan Despí Moisès Broggi, Gastroenterology Unit, Sant Joan Despí, Spain, Hospital de Viladecans, Gastroenterology Unit, Barcelona, Spain, Hospital Universitario de Álava, Gastroenterology Unit, Vitoria, Spain, Hospital General de Tomelloso, Gastroenterology Unit, Ciudad Real, Spain, Hospital Universitario Arnau de Vilanova, Gastroenterology Unit, Lérida, Spain, Complejo Asistencial Universitario de Palencia, Gastroenterology Unit, Palencia, Spain, Hospital Royo Villanova, Gastroenterology Unit, Zaragoza, Spain, Hospital Marina Baixa, Gastroenterology Unit, Alicante, Spain, Hospital Universitario Infanta Sofía, Gastroenterology Unit, Madrid, Spain, Hospital Universitario Son Espases, Gastroenterology Unit, Palma de Mallorca, Spain

¹Wilhelmina Children's Hospital, Pediatric Gastro-enterology, Utrecht, The Netherlands, ²Erasmus MC-Sophia, Pediatric Gastro-enterology, Rotterdam, The Netherlands, ³Sanquin Diagnostic Services, Biologics Lab, Amsterdam, The Netherlands

¹Abpro Corp., Woburn, USA, ²Takeda Pharmaceuticals, Cambridge, USA

¹Sant'Orsola Hospital, Alma Mater Studiorum University of Bologna, Department of Medical and Surgical Sciences, Bologna, Italy

¹Hospital Sant Joan de Déu Althaia - Manresa, Gastroenterology, Manresa- Barcelona, Spain, ²Hospital Mútua de Terrassa, Gastroenterology, Terrassa- Barcelona, Spain, ³Hospital Arnau de Vilanova, Gastroenterology, Lleida, Spain, ⁴Hospital Clínic de Barcelona, Gastroenterology, Barcelona, Spain, ⁵Hospital Universitario de la Princesa, Gastroenterology, Madrid, Spain, ⁶Hospital La Paz, Gastroenterology, Madrid, Spain, ⁷HGU de Elche, Gastroenterology, Elche- Alicante, Spain, ⁸Hospital Clínico Universitario Lozano Blesa, Gastroenterology, Zaragoza, Spain, ⁹Hospital de Galdakao, Gastroenterology, Galdakao-Vizcaya, Spain, ¹⁰HU Salamanca, Gastroenterology, Salamanca, Spain, ¹¹Hospital San Jorge, Gastroenterology, Huesca, Spain, ¹²Hospital Reina Sofía, Gastroenterology, Córdoba, Spain, ¹³Hospital dr. Josep Trueta, Gastroenterology, Girona, Spain, ¹⁴HGU Alicante, Gastroenterology, Alicante, Spain, ¹⁵Hospital Germans Trias i Pujol, Gastroenterology, Barcelona, Spain, ¹⁶Hospital Ramón y Cajal, Gastroenterology, Madrid, Spain, ¹⁷Hospital Clínico San Carlos, Gastroenterology, Madrid, Spain, ¹⁸Hospital La Fe, Gastroenterology, Valencia, Spain, ¹⁹Hospital de Bellvitge, Gastroenterology, Barcelona, Spain, ²⁰Hospital Parc Taulí, Gastroenterology, Sabadell-Barcelona, Spain, ²¹Hospital Clínico, Gastroenterology, Valencia, Spain, ²²Hospital Son Llàtzer, Gastroenterology, Mallorca, Spain, ²³Hospital de Santiago, Gastroenterology, Santiago de Compostela, Spain, ²⁴Hospital de la Santa Creu i Sant Pau, Gastroenterology, Barcelona, Spain, ²⁵Complejo Hospitalario de Burgos, Gastroenterology, Burgos, Spain, ²⁶Complejo Hospitalario de Navarra, Gastroenterology, Pamplona, Spain, ²⁷Hospital Río Hortega, Gastroenterology, Valladolid, Spain, ²⁸Hospital de Torrejón, Gastroenterology, Torrrejón-Madrid, Spain, ²⁹HU Miguel Servet, Gastroenterology, Zaragoza, Spain, ³⁰Consorci Sanitari Mútua de Terrassa, Gastroenterology, Terrassa-Barcelona, Spain, ³¹Hospital de Basurto, Gastroenterology, Basurto-Bilbao, Spain, ³²Hospital Viladecans, Gastroenterology, Viladecans-Barcelona, Spain, ³³HU de Fuenlabrada, Gastroenterology, Fuenlabrada-Madrid, Spain, ³⁴Hospital 12 de Octubre, Gastroenterology, Madrid, Spain, ³⁵Hospital Nuestra Señora de la Candelaria, Gastroenterology, Santa Cruz de Tenerife, Spain, ³⁶Hospital Clínico, Gastroenterology, Valladolid, Spain, ³⁷Hospital General Universitario, Gastroenterology, Valencia, Spain, ³⁸Hospital de Donostia, Gastroenterology, Donostia, Spain, ³⁹Hospital General, Gastroenterology, Ciudad Real, Spain, ⁴⁰Hospital General, Gastroenterology, Castelló, Spain, ⁴¹Hospital Marqués de Valdecilla, Gastroenterology, Santander, Spain, ⁴²HU de Álava, Gastroenterology, Álava, Spain, ⁴³Hospital Infanta Sofía, Gastroenterology, Madrid, Spain, ⁴⁴HU Central de Asturias, Gastroenterology, Oviedo, Spain, ⁴⁵Hospital General de Tomelloso, Gastroenterology, Tomelloso-Ciudad Real, Spain, ⁴⁶Hospital de Cruces, Gastroenterology, Barakaldo-Bilbao, Spain, ⁴⁷Hospital de Segovia, Gastroenterology, Segovia, Spain, ⁴⁸HU Puerta de Hierro, Gastroenterology, Majadahonda-Madrid, Spain, ⁴⁹Hospital General de Granollers, Gastroenterology, Granollers-Barcelona, Spain

¹University of Naples, Translational Medical Science, Section of Pediatrics, Naples, Italy, ²Children Hospital of Philadelphia, Gastroenterology, Hepatology and Nutrition Division, Philadelphia, USA

¹University of Missouri – Kansas City School of Pharmacy, Kansas City, USA, ²AbbVie, Chicago, USA, ³Analysis Group, Boston, USA

¹Erasmus Mc-Sophia Children's Hospital, Rotterdam, The Netherlands, ²Icahn School of Medicine, Mount Sinai, New York, USA, ³Janssen Scientific Affairs, LLC, Horsham, USA, ⁴Janssen Research and Development, LLC, Spring House, USA, ⁵The Hospital for Sick Children, University of Toronto, Toronto, Canada

¹County Durham and Darlington NHS Foundation Trust, Gastroenterology, Durham, UK, ²Hull Royal Infirmary, Gastroenterology, Hull, UK

¹University Medical Center Utrecht, Utrecht, The Netherlands

¹GlaxoSmithKline, Clinical Pharmacology and Experimental Medicine, Stevenage, UK, ²PAREXEL International, Berlin, Germany, ³PAREXEL International, London, UK, ⁴Institute of Clinical Chemistry and Clinical Pharmacology, Study Center Bonn (SZB), Bonn, Germany, ⁵GlaxoSmithKline, Stevenage, UK, ⁶GlaxoSmithKline, Upper Providence, USA, ⁷TxCell S.A., Valbonne, France, ⁸IMED Biotech, AstraZeneca, Cambridge, UK

¹Hospital Santa Maria, CHLN, Gastrenterology, Lisbon, Portugal

¹Great Ormond Street Hospital, Gastroenterology, London, UK, ²University College London Hospital, Gastroenterology, London, UK