1. Department of Hematology, Rigshospitalet, Copenhagen, Denmark;
2. Biotech Research and Innovation Centre, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark;
3. The Danish Stem Cell Center (Danstem), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark;
4. The Danish Twin Registry, University of Southern Denmark, Odense, Denmark;
5. Department of Epidemiology, Biostatistics and Biodemography, University of Southern Denmark, Odense, Denmark; and
6. Finsen Laboratory, Rigshospitalet, Copenhagen, Denmark