1. Department of Biochemistry and Molecular Biology, University of Iceland, Reykjavik IS-101, Iceland
2. Department of Genetics and Molecular Medicine, Landspitali–National University Hospital, Reykjavik IS-101, Iceland
3. Lifeind ehf., Reykjavik IS-101, Iceland
4. Faculty of Medicine, University of Iceland, Reykjavik IS-101, Iceland
5. The Blood Bank, Landspitali–National University Hospital, Reykjavik IS-101, Iceland
6. Department of Paediatrics, The Hospital for Sick Children, Toronto, ON, M5G 1X8, Canada
7. University of Toronto, Toronto, ON, M5S 1A8, Canada
8. Center for Human Genomics and Precision Medicine, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin 53705, USA