Associated factors of antiphospholipid syndrome. When do we need antiphospholipid antibodies? Jaime Andrés Escobar Sáenz; Oscar Muñoz Velandia; Paula Ruiz Talero; Daniel Fernández Ávila;

Factors associated with asymptomatic vertebral fractures in patients with rheumatoid arthritis in a rheumatology service in Bogotá (Colombia) Alexis Javier Atuesta Rodríguez; Federico Rondón Herrera; Enrique Calvo Páramo; Orfa Yaneth Motta Quimbaya; Yazmín Adriana Caicedo Gélvez;

Brucellosis and sacroiliitis: A differential diagnosis to keep in mind Omar Fernando Bolaños Toro; Lina María Saldarriaga Rivera; Edna Juliana Murcia Rojas; Julián Andrés Hoyos Pulgarin;