Received: 12 October 2020
Accepted: 22 March 2021
First Online: 7 April 2021
: This cross-sectional study was approved by our Local Ethical Committee on the 24/10/2019 (no. 2386), and conducted in accordance with ethical and humane principles of research of the Declaration of Helsinki.
: The authors declare that they have no competing interests.
: Not applicable.