Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK.

School of Public Health, University of Michigan, Ann Arbor, MI, USA.; Faculty of Law, University of Amsterdam, Amsterdam, The Netherlands.

Wroclaw Medical University, Poland; Erasmus+ Exchange Student at Nova Medical University, Lisbon, Portugal.; First Chair and Department of Cardiology, Medical University of Warsaw, Poland. Electronic address: krzysztof.filipiak@wum.edu.pl.; Lazarski Univeristy, Warsaw, Poland, Polish Society of Disaster Medicine, Warsaw, Poland.; First Department of Cardiology, Medical University of Gdansk, Gdansk, Poland.; Department of Emergency Medical Service, Wroclaw Medical University, Wroclaw, Poland.; Chair and Department of Medical Microbiology, Medical University of Warsaw, Poland.

[Zhu, Yuanmei; Yu, Danwei; Yan, Hongxia; Chong, Huihui; Ren, Lili; Wang, Jianwei; He, Yuxian] Chinese Acad Med Sci & Peking Union Med Coll, Inst Pathogen Biol, NHC Key Lab Syst Biol Pathogens, Beijing, Peoples R China; [Han, Yang; Li, Taisheng] Chinese Acad Med Sci, Peking Union Med Coll Hosp, Dept Infect Dis, Beijing, Peoples R China

Department of Paediatric Immunology & Infectious Diseases, University Hospital Southampton NHS Foundation Trust, Southampton, UK sanjayvp99@gmail.com.; NIHR Wellcome Trust Clinical Research Facility, University Hospital Southampton NHS Foundation Trust, Southampton, UK.; Pediatric Infectious Diseases Unit, Department of Pediatrics. Pediatric Research and Clinical Trials Unit (UPIC), Translational Research Network in Pediatric Infectious Diseases (RITIP), Hospital Universitario 12 de Octubre, Madrid, Spain.; Department of General Pediatrics and Pediatric Infectious Diseases, Necker-Enfants Malades Hospitals, Paris, Ile-de-France, France.; Pediatric Infectious Diseases, General Pediatrics, Pediatric Department, Cliniques universitaires Saint-Luc, Bruxelles, Belgium.; Institut de Recherche Experimentale et Clinique (IREC), UCLouvain Saint-Louis Bruxelles, Bruxelles, Belgium.

Department of Mental Health, Obafemi Awolowo University.; Mental Health Unit, Obafemi Awolowo University Teaching Hospitals Complex.

IBD Pharmacogenetics Group, University of Exeter, Government of the United Kingdom - Royal Devon and Exeter Hospital, IBD Pharmacogenetics Group, University of Exeter, University of Bath, Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Government of the United Kingdom - Royal Devon and Exeter Hospital, Government of the United Kingdom - Department of Gastroenterology, IBD Pharmacogenetics Group, University of Exeter and IBD Pharmacogenetics Group, University of Exeter

University of Sheffield, Sheffield, UK.

[Khan, Khurum] Gastrointestinal Oncol Serv & Canc Unknown Primar, 250 Euston Rd, London NW1 2PG, England; [Khan, Khurum] Univ Coll London Hosp NHS Fdn Trust, UCL Canc Inst, 250 Euston Rd, London NW1 2PG, England; [Crolley, Valerie; Kantser, Ganna; Saha, Aramita; Raja, Fharat; Khan, Khurum] North Middlesex Univ Hosp, 250 Euston Rd, London NW1 2PG, England; [Khan, Khurum] GI Canc Lead North London Canc Res Netword, 250 Euston Rd, London NW1 2PG, England; [Khan, Khurum] Oncol Res Lead North Middlesex Univ Hosp, 250 Euston Rd, London NW1 2PG, England; [Joharatnam-Hogan, Nalinie] UCL, CTU, MRC, London, England; [Hochhauser, Daniel; Shiu, Kai-Keen; Bridgewater, John] Univ Coll London Hosp NHS Fdn Trust, London, England; [Rush, Hannah] UCL, London, England; [Wilson, William] Canc Res UK, London, England; [Wilson, William] UCL Canc Trials Ctr, London, England; [Sharma, Anand] Mt Vernon Hosp, Northwood, Middx, England; [Muhammad, Aun] Whittington Hosp, London, England; [Vasdev, Nikhil] Lister Hosp East & North Herts NHS Trust, Stevenage, Herts, England; [Goldstein, Robert] Royal Free Hosp, London, England; [Anwar, Muhammad] Princess Alexandra Hosp, Harlow, Essex, England