Affiliations

• ¹ Institute of Medical Genetics, Division of Cancer and Genetics, Cardiff University, School of Medicine, Cardiff, UK.
• ² Institute of Medical Genetics, Division of Cancer and Genetics, Cardiff University, School of Medicine, Cardiff, UK; Department of Gastroenterology, Prince Charles Hospital, Merthyr Tydfil, UK.
• ³ GI Department, Complejo Hospitalario de Navarra, Pamplona, Spain.
• ⁴ Hereditary Cancer Unit, Cancer Division, Karolinska University Hospital, Stockholm, Sweden; Institution of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden.
• ⁵ Hereditary Cancer Program, Catalan Institute of Oncology, IDIBELL, Hospitalet de Llobregat, Barcelona, Spain.
• ⁶ The Polyposis Registry, St Marks Hospital, Watford Road, Harrow, UK; Department of Surgery and Cancer, Faculty of Medicine, Imperial College, London, UK.
• ⁷ Department of Genetics, Curie Institute, Paris, France.
• ⁸ Department of Gastroenterology and Hepatology, Amsterdam University Medical Centres location AMC, University of Amsterdam, Amsterdam, The Netherlands.
• ⁹ Division of Population Medicine, Cardiff University School of Medicine, Cardiff, UK.
• ¹⁰ Department of Gastroenterology and Hepatology, Leiden University Medical Centre, Leiden, The Netherlands.
• ¹¹ Centrum Medische Genetica UZ, Brussels, Belgium; Leiden University Medical Center (LUMC), Department of Clinical Genetics, Leiden, The Netherlands.
• ¹² Department of Gastroenterolgy, Hepatology and Nutrition, Division of Internal Medicine, UT MD Anderson Cancer Center, Houston, Texas.
• ¹³ Clinical Cancer Genetics Program, UT MD Anderson Cancer Center, Houston, Texas.
• ¹⁴ Leiden University Medical Center (LUMC), Department of Clinical Genetics, Leiden, The Netherlands.
• ¹⁵ Department of Digestive Surgery, Hôpital Saint-Antoine AP-HP, Sorbonne Université, Paris, France.
• ¹⁶ Unit of Hereditary Digestive Tract Tumors, Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
• ¹⁷ Digestive Department, Edouard Herriot Hospital, Lyon, France.
• ¹⁸ Clinical Cancer Genetics Program, UT MD Anderson Cancer Center, Houston, Texas; Department of Clinical Cancer Prevention, UT MD Anderson Cancer Center, Houston, Texas.
• ¹⁹ Institute of Medical Genetics, Division of Cancer and Genetics, Cardiff University, School of Medicine, Cardiff, UK. Electronic address: Sampson@cf.ac.uk.