Vitamin D levels in patients with small and medium vessel vasculitis Fatma Nur Korkmaz; Gulsen Ozen; Ali Ugur Unal; Asli Odabasi; Meryem Can; Ebru As¿c¿oglu; Serhan Tuglular; Haner Direskeneli;

Ocular inflammatory manifestations in patients with rheumatoid arthritis Raul E. Ruiz-Lozano; Luis Arnaldo Prida-Espaillat; Reinaldo A. Moll-Auais; Eugenia M. Ramos-Dávila; Manuel E. Quiroga-Garza; Aaron Zhao; Ali Khodor; Amr Almobayed; David Vega-Morales; Alejandro Rodriguez-Garcia;

Survey to evaluate exposure to environmental factors in patients with rheumatoid arthritis Alexandra Zúñiga; Alba Luz León Álvarez; Luisa Carbal-Reyes; Daniel Rodríguez; Juan-Camilo Díaz; Gloria Vásquez; Diana Castaño;