1. Department of Gastrointestinal and Liver Diseases; Biodonostia Health Research Institute; Spain
2. Department of Biosciences and Nutrition; Karolinska Institutet; Stockholm Sweden
3. Department of Twin Research & Genetic Epidemiology; King's College London; London England
4. Department of Genetics; University Medical Center Groningen; Groningen The Netherlands
5. Department of Immunology, Genetics and Pathology; Science for Life Laboratory Uppsala; Uppsala University; Uppsala Sweden
6. Department of Functional Genomics; Interfaculty Institute of Genetics and Functional Genomics; University Medicine Greifswald; Greifswald Germany
7. Department of Medicine A; University Medicine Greifswald; Greifswald Germany
8. Center for Life Course Health Research; University of Oulu; Oulu Finland
9. Oulu University Hospital; Oulu Finland
10. Department of Epidemiology and Biostatistics; Imperial College London; London UK
11. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd); Universidad del País Vasco (UPV/EHU); San Sebastián Spain
12. Primary Health Care Center; Tornio Finland
13. Department of Ophthalmology; King's College London; St Thomas’ Hospital Campus; London UK
14. Unit of Clinical Epidemiology; Department of Medicine Solna; Karolinska Institutet; Stockholm Sweden
15. BioCruces Health Research Institute; Bilbao Spain
16. IKERBASQUE; Basque Science Foundation; Bilbao Spain