Document is current

Article History

Received: 15 August 2018

Accepted: 4 June 2019

First Online: 13 June 2019

Ethics approval and consent to participate

: The study was 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, Toruń, Poland.All authors signed a written informed consent for the publication of the article.All authors read and approved the final manuscript.All patients signed written informed consent for take part in the study. For patients with intellectual disabilities, written consent for part in the study was signed on the study by the parents/legal guardians.

: 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.