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

Referral criteria from primary care to rheumatology: A qualitative study Ana Urruticoechea-Arana, Miguel Angel Abad-Hernandez, Raquel Almodóvar, Joan Miquel Nolla-Solé, Juan Carlos Hermosa Hernán, María Medina Abellán, Concepción Fito Manteca, José María Pego-Reinosa, José Javier Pérez Venegas, Paloma Vela, Marcos Paulino, Fernando León-Vazquez

Rheumatoid factor testing in Spanish primary care: A population-based cohort study including 4.8 million subjects and almost half a million measurements Klara Morsley, Anne Miller, Raashid Luqmani, Francesc Fina-Aviles, Muhammad Kassim Javaid, Christopher J. Edwards, Rafael Pinedo-Villanueva, Manuel Medina, Sebastian Calero, Cyrus Cooper, Nigel Arden, Daniel Prieto-Alhambra