Doko, Ines http://orcid.org/0000-0002-8977-6010
Bajić, Žarko http://orcid.org/0000-0002-7983-6892
Dubravić, Amir http://orcid.org/0000-0003-1552-0730
Qorolli, Merita http://orcid.org/0000-0003-3756-4494
Grazio, Simeon http://orcid.org/0000-0003-3407-0317
Article History
Received: 20 December 2018
Accepted: 4 February 2019
First Online: 12 February 2019
Compliance with ethical standards
:
: Ines Doko, Žarko Bajić, Amir Dubravić and Merita Qorolli declare that they have no conflict of interest. Simeon Grazio is a member of the Editorial Board of Rheumatology Int.
: All procedures performed were in accordance with ethical standards of the institutional research committee (protocol number EP–13030/11–8), and with the 1964 Helsinki Declaration and its later amendments.
: Informed consent was obtained from all individual participants included in the study.