Clinical features of patients with hands arthralgia referred from primary care physicians to rheumatologists: A cohort study Gabriel Figueroa-Parra; Martha Mariana Castañeda-Martinez; Pablo Herrera-Sandate; Diana Daniela Castañeda-Martinez; Jorge Antonio Esquivel-Valerio; David Vega-Morales;

Ultrasound tenosynovitis: A differential feature of patients with seronegative rheumatoid arthritis Santiago Ruta; Einer Sanchez Prado; Facundo Salvatori; Juan Arguello; Darío Aguerre; Sebastián Magri; Rodrigo García Salinas;

The association between smoking and the development of rheumatoid arthritis: a population-based case-control study Júlia Sánchez-Campamà; Navraj S. Nagra; Marta Pineda-Moncusí; Albert Prats-Uribe; Daniel Prieto-Alhambra;