1. Institute of Human Genetics; Department of Human Molecular Genetics; University of Heidelberg; Heidelberg Germany
2. University of Manchester; Manchester UK
3. Mayo Clinic; Jacksonville FL USA
4. Washington University School of Medicine; St. Louis MO USA
5. Mayo Clinic; Rochester MN USA
6. Hospital General “Dr. Manuel Gea Gonzalez”; Mexico City Mexico
7. NIHR Biomedical Research Unit; Nottingham Digestive Diseases Centre; University of Nottingham; Nottingham UK
8. TARGID; University Hospital Leuven; Leuven Belgium
9. Institute of Medical Biometry and Informatics; University Hospital Heidelberg; Heidelberg Germany