Received: 24 January 2020
Accepted: 16 May 2020
First Online: 22 May 2020
Ethics approval and consent to participate
: The survey protocol was conducted according to the Declaration of Helsinki. All survey participants signed informed consent forms for all personally identifiable data including demographic, clinical, and biomedical data. The study was approved by the Clinical Centre of Serbia Ethics Committee (No. 29/V-16).
: Written informed consent for publication of their clinical details was obtained from the patients. A copy of the consent form is available for review by the Editor of this journal.
: The authors declare that they have no financial and non-financial competing interests.