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Article History

Received: 9 April 2019

Accepted: 17 October 2019

First Online: 12 November 2019

Ethics approval and consent to participate

: The ethics committee at the Institute of Psychiatry and Neurology (Warsaw, Poland) approved the study. All patients gave written informed consent.

: Not applicable.

: We have no relevant financial interest in the submitted publication matter. All financial involvement (e.g., employment, consultancies, honoraria, stock ownership or options, grants or patents receiving or pending, royalties) with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the submitted publication material are completely disclosed.