About the Authors

Petteri Nieminen

petteri.nieminen@uef.fi

Affiliations University of Eastern Finland, Faculty of Health Sciences, School of Medicine, Department of Biomedicine/Anatomy, P.O. Box 1627, FI-70211, Kuopio, Finland, University of Eastern Finland, Philosophical Faculty, School of Theology, P.O. Box 111, FI-80101, Joensuu, Finland

Esko Ryökäs

Affiliation University of Eastern Finland, Philosophical Faculty, School of Theology, P.O. Box 111, FI-80101, Joensuu, Finland

Anne-Mari Mustonen

Affiliations University of Eastern Finland, Faculty of Health Sciences, School of Medicine, Department of Biomedicine/Anatomy, P.O. Box 1627, FI-70211, Kuopio, Finland, University of Eastern Finland, Faculty of Science and Forestry, Department of Biology, P.O. Box 111, FI-80101, Joensuu, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PN ER AMM. Performed the experiments: PN. Analyzed the data: PN. Wrote the paper: PN ER AMM.