Results from a cross-sectional, observational study to assess inadequate pain relief in patients with knee and/or hip osteoarthritis in Mexico Ruben Burgos-Vargas; Jyoti Aggarwal; Kelly D. Johnson; Dena Ramey; Fidel Lozano; Cynthia Macahilig; Ishita Doshi; Kaan Tunceli;

Validation of a Spanish version of the Health Assessment Questionnaire-II to assess Mexican patients¿ physical function with rheumatoid arthritis Gabriel Horta-Baas;

PROCOAC (PROspective COhort of A Coruña) description: Spanish prospective cohort to study osteoarthritis Natividad Oreiro-Villar; Ana C. Raga; Ignacio Rego-Pérez; Sonia Pértega; Maite Silva-Diaz; Mercedes Freire; Carlos Fernández-López; Francisco J. Blanco;