[1] Hosp Privado, Cordoba, Argentina
[2] Inst Reumatol Strusberg, Cordoba, Argentina
[3] Hosp Privado Cordoba, Cordoba, Argentina
[4] Inst Modelo Cardiol, Cordoba, Argentina
[5] Hosp Jose Maria Cullen, Santa Fe, Argentina
[6] Hosp Italiano Buenos Aires, Internal Med Serv, Rheumatol Unit, Buenos Aires, DF, Argentina
[7] Hosp Prov, Rosario, Santa Fe, Argentina
[8] Hosp Cullen, Santa Fe, Argentina
[9] Consultorio, Buenos Aires, DF, Argentina
[10] Sanatorio Parque, Rosario, Santa Fe, Argentina
[11] Univ Nacl Tucuman, Yerba Buena, Tucuman, Argentina