Received: 2 May 2019
Accepted: 30 April 2020
First Online: 8 May 2020
Ethics approval and consent to participate
: Ethics approval was obtained from the Zaporizhzhia Medical Academy of Postgraduate Education Ethics Committee - Zaporizhzhia, Ukraine, on 15th September 2016. All participants provided written informed consent.
: Not applicable.
: O.A. Levada is a member of advisory and/or speaker boards of the following companies: Lundbeck, Pfizer, Acino. A.S. Troyan gave presentations for Lundbeck and Acino.