Funding for this research was provided by:
UNIRI (uniri-biomed-18-133, uniri-biomed-18-257)
Received: 18 June 2020
Accepted: 17 March 2021
First Online: 16 April 2021
: The authors are accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved. The research was approved by the Ethics Committee of “Thalassotherapia Opatija” (No. 01–438/2014) and the Ethics Committee of the Medical School of Rijeka University, Croatia (Code: 643–03/18–01/38, Re. no.: 2170–15- 18–1). All subjects signed an informed consent form pursuant to the Helsinki Declaration.
: Not applicable.
: The authors declare that they have no competing interests.