Authors: Karin Margarita Frei; Ulla Mannering; Kristian Kristiansen; Morten E Allentoft; Andrew S Wilson; Irene Skals; Silvana Tridico; Marie Louise Nosch; Eske Willerslev; Leon Clarke; Robert Frei Journal: Sci Rep Date: 2015-05-21 Impact factor: 4.379