Ethics note
The study was carried out in accordance with all relevant applicable
national guidelines for the care and use of animals. The study was
granted ethical approval (approval Dnr ID 83, 39-10, and 33-15), by the
Ethical Committee on Animal Experiments in Linköping, Swedish Board of
Agriculture, Sweden. For Danish samples, collections were carried out in
accordance with ethical guidelines and animal welfare legislation
described in permission (2005/561-987) from the Danish Ministry of
Justice.