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Article History

Received: 6 February 2018

Accepted: 13 July 2018

First Online: 27 July 2018

Ethics approval and consent to participate

: The study was approved by the local Ethical Committee of the Central Denmark Region (journal no.: 1–16–02-209-15) and by the Danish Data Protection Agency (journal no.: 1–10–72-69-15). Further, all participants provided their written informed consent to participate in the study.

: Not applicable.

: Axlab, the Danish manufacturer of the Evalyn® Brush, provided self-sampling devices for the study. In accordance with the contract between the manufacturers and the Department of Public Health Programmes, Randers Regional Hospital, Axlab had no influence on the scientific process and no editorial rights pertaining to this manuscript. The authors retained the right to submit the manuscript. None of the authors were compensated for their work on this study, have any shares in the manufacturers’ companies, or received bonuses from any of the manufacturers. The authors declare that they have no competing interests.

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