Udachkina, Helen V. http://orcid.org/0000-0002-3661-6427
Novikova, Diana S. http://orcid.org/0000-0003-0840-1549
Popkova, Tatiana V. http://orcid.org/0000-0001-5793-4689
Kirillova, Irina G. http://orcid.org/0000-0002-1003-2087
Markelova, Evgenia I. http://orcid.org/0000-0002-1729-4610
Article History
Received: 5 April 2018
Accepted: 7 May 2018
First Online: 11 May 2018
Compliance with ethical standards
:
: There are not any potential conflicts of interest relevant to this article.
: The research involved human participants.
: All procedures performed in the study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study protocol had been approved by the local ethics committee in V.A. Nasonova Research Institute of Rheumatology (protocol #3, 24th of January 2012).
: Informed consent was obtained from all individual participants included in the study.
: There was not any targeted funding relevant to this article.