Interleukin-18, interleukin-12B and interferon-γ gene polymorphisms in Brazilian patients with rheumatoid arthritis: a pilot study - Angelo, H. D; Gomes Silva. I. I. F; Oliveira, R. D. R; Louzada Júnior, Paulo; Donadi, Eduardo Antônio; Crovella, S; Maia, M. M. D; Souza, P. R. E; Sandrin-Garcia, P (Tissue Antigens, 2015)