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Supplemental Information

Supplementary Material

This supplementary material outlines the individual classi cation for each of the papers analysed.

DOI: 10.7287/peerj.preprints.2602v1/supp-1

PRISMA checklist

PRISMA checklist

DOI: 10.7287/peerj.preprints.2602v1/supp-2

Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Anja Franziska Ernst conceived and designed the experiments, analyzed the data, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Casper J Albers conceived and designed the experiments, analyzed the data, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Data Deposition

The following information was supplied regarding data availability:

The raw data has been supplied as a supplementary file.

Funding

The authors received no funding for this work.


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