1. Science for Life Laboratory, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University , Sweden
2. Science for Life Laboratory, Department of Microbiology, Tumor and Cell Biology, Karolinska Institute , Solna , Sweden
3. Science for Life Laboratory and Center for Palaeogenetics. Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University , Sweden