Received: 26 July 2018
Accepted: 2 August 2018
First Online: 20 August 2018
Ethics approval and consent to participate
: Research have been performed in accordance with the Declaration of Helsinki and accepted standards of ethics. The consent of the relevant bioethics committee was obtained: Bioethics Committee of Nicolaus Copernicus University in Toruń at the Collegium Medicum im. Ludwik Rydygier in Bydgoszcz. All authors signed a written informed consent for the publication of the article. All patients signed written informed consent for take part in the study.
: All patients signed written informed consent for the publication of their clinical data. For patients with intellectual disabilities, written consent for publication was obtained by the parents/legal guardians.
: The authors declare that they have no competing interests.
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