Barcelos, Filipe http://orcid.org/0000-0002-3764-0808
Martins, Catarina http://orcid.org/0000-0003-0353-0421
Papoila, Ana http://orcid.org/0000-0002-2918-8364
Geraldes, Carlos http://orcid.org/0000-0002-1551-6531
Cardigos, Joana http://orcid.org/0000-0002-9053-0720
Nunes, Glória http://orcid.org/0000-0001-5741-9070
Lopes, Teresa http://orcid.org/0000-0002-4828-0465
Alves, Nuno http://orcid.org/0000-0003-3301-1032
Vaz-Patto, José http://orcid.org/0000-0002-2686-4742
Branco, Jaime http://orcid.org/0000-0001-7024-4375
Borrego, Luís-Miguel http://orcid.org/0000-0003-4708-438X
Article History
Received: 27 February 2018
Accepted: 21 March 2018
First Online: 6 April 2018
Compliance with ethical standards
:
: The authors have declared no conflicts of interest.
: All procedures performed in studies involving human participants 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. This study was approved by the Ethics committee of Hospital Cuf Descobertas, 8/09/2014, Ethics committee of Instituto Português de Reumatologia, 3/07/2015 and NOVA Medical School Ethics (no. 17/2016/CEFCM). All patients have signed an informed consent to participate according to the Declaration of Helsinki.