[1] Univ Fed Pernambuco, Internal Med, Recife, PE, Brazil
[2] Univ Fed Ceara, Rheumatol, Fortaleza, Ceara, Brazil
[3] Inst Med Integral Prof Fernando Figueira IMIP, Internal Med, Recife, PE, Brazil
[4] Hosp Getulio Vargas, Internal Med, Recife, PE, Brazil
[5] Univ Fed Paraiba, Internal Med, Joao Pessoa, Paraiba, Brazil
[6] Univ Fed Sergipe, Internal Med, Aracaju, Brazil