,
Ranza, Roberto https://orcid.org/0000-0002-6855-2413
de la Vega, Maria Celina
Laurindo, Ieda Maria Magalhães
Gómez, Marìa Gimena
Titton, David Cezar
Kakehasi, Adriana Maria
Brigante, Alejandro
Benitez, Alejandro
Ranzolin, Aline
Granel, Amelia
Cappuccio, Ana María
Quinteros, Ana
Hayata, André Luiz Shinji
Smichowski, Andrea
Duarte, Ângela Luzia Branco P.
Kahlow, Barbara Stadler
Andia, Carolina Sánchez
Brenol, Claiton Viegas
Velozo, Edson
Mussano, Eduardo
Soriano, Enrique R.
Christopoulos, Georges Basile
da Rocha Castelar Pinheiro, Geraldo
de Castro, Gláucio Ricardo Werner
Casado, Gustavo
da Silveira Carvalho, Hellen Mary
Exeni, Ida Elena
da Silveira, Inês Guimarães
Petkovic, Ingrid
Pereira, Ivanio Alves
da Costa, Izaias Pereira
Rosa, Javier Eduardo
Miranda, José Roberto Silva
de Moraes, Julio Cesar Bertacini
Bertolo, Manoel Barros
Buhl, Manuel
Lázaro, Maria Alícia
da Sauma, Maria de Fátima Lobato C.
de Medeiros Pinheiro, Marcelo
Díaz, Monica
de Vechi, Mônica Valéria Siqueira Santana
Cerda, Osvaldo Luis
Astesana, Pablo
Curi, Pablo Finucci
Louzada-Jr, Paulo
Teodoro, Reginaldo Botelho
Toledo, Roberto Acayaba
Papasidero, Sílvia
Valim, Valeria
Fernandes, Vander
Saurit, Veronica
Bianchi, Washington Alves
de Melo Costa Pinto, Rogério
Descalzo, Miguel Angel
Gomez-Reino, Juan Jesus
Funding for this research was provided by:
Sociedade Brasileira de Reumatologia (----)
Sociedad Argentina de Reumatologia (---)
Article History
Received: 6 January 2019
Revised: 2 March 2019
Accepted: 13 March 2019
First Online: 17 April 2019
Compliance with ethical standards
:
: All authors are members of the respective national rheumatological society. All authors declare to have no competing interests.
: Ethics committees of the leading centres in Brazil and Argentina (Curitiba and Buenos Aires) approved the study. Each site obtained the approval of local ethics committee. All patients signed an informed consent prior to inclusion in the registries.