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;

The reality of Rheumatology in Spain and its autonomous communities before the pandemic Carlos Sánchez-Piedra; José María Álvaro-Gracia; Sagrario Bustabad-Reyes; Federico Díaz-González;

Prevalence of clinical and radiological osteoarthritis in knee, hip, and hand in an urban adult population of Mexico City Salvador Israel Macías-Hernández; Erick Rodrigo Zepeda-Borbón; Blanca Isabel Lara-Vázquez; Nuria María Cuevas-Quintero; Juan Daniel Morones-Alba; Eva Cruz-Medina; Tania Inés Nava-Bringas; Antonio Miranda-Duarte;