About the Authors

Niels Lynnerup

To whom correspondence should be addressed. E-mail: n.lynnerup@antrolab.ku.dk

Affiliation Department of Forensic Medicine, University of Copenhagen, Copenhagen, Denmark

Henrik Kjeldsen

Affiliation AMS 14C Dating Centre, Department of Physics and Astronomy, University of Aarhus, Aarhus, Denmark

Steffen Heegaard

Affiliation Eye Pathology Section, Department of Neuroscience and Pharmacology, University of Copenhagen, Copenhagen, Denmark

Christina Jacobsen

Affiliation Department of Forensic Medicine, University of Copenhagen, Copenhagen, Denmark

Jan Heinemeier

Affiliation AMS 14C Dating Centre, Department of Physics and Astronomy, University of Aarhus, Aarhus, Denmark

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NL HK SH. Performed the experiments: HK CJ SH. Analyzed the data: NL HK JH. Contributed reagents/materials/analysis tools: CJ SH JH. Wrote the paper: NL HK.