1. Centre for Global Health Usher InstituteThe University of Edinburgh Edinburgh UK
2. Department of Epidemiology and Biostatistics School of Public Health Imperial College London London UK
3. Colon Cancer Genetics Group Medical Research Council Human Genetics Unit Institute of Genetics and Molecular Medicine Western General HospitalUniversity of Edinburgh Edinburgh UK
4. Department of Hygiene and Epidemiology University of Ioannina School of Medicine Ioannina Greece
5. Danish Institute for Advanced Study Department of Public Health University of Southern Denmark Odense C Denmark