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Article History

Received: 19 May 2018

Accepted: 29 October 2018

First Online: 14 November 2018

Ethics approval and consent to participate

: The study was approved by the Republic of Slovenia National Medical Ethics Committee at the Ministry of Health, No. 59/03/15. A permission to conduct the study at each of the health centres was obtained from the directors of the institutions. All participants signed informed consent form about voluntary participation in the study.

: Not applicable

: The authors declare that they have no competing interests.

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