1. Center for GeoGenetics, Natural History Museum of Denmark; University of Copenhagen; Øster Voldgade 5-7; DK-1350; Copenhagen; Denmark
2. Greenland Institute of Natural Resources; Box 570; DK-3900; Nuuk; Greenland
3. Age Dynamics; Huldbergs Allé 42; DK-2800; Kongens Lyngby; Denmark
4. Center of Applied Statistics, Department of Mathematical Science; University of Copenhagen; Universitetsparken 5; DK-2100; Copenhagen; Denmark
5. Icelandic Meteorological Office; Bústaavegur 9; 150; Reykjavík; Iceland
6. Department of Pharmaceutics and Analytical Chemistry, Faculty of Pharmaceutical Science; University of Copenhagen; Universitetsparken 2; 2100; Copenhagen; Denmark