1. Edinburgh Migration, Ethnicity and Health Research Group, Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Scotland, UK
2. Graduate Entry Medical School, University of Limerick, Ireland
3. Research Unit for the Analysis of Mortality and Health Statistics, Department of Community Nursing, Preventive Medicine, Public Health and History of Science, University of Alicante, Spain
4. Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark