Prevalence and demographic characteristics of psoriatic arthritis in Colombia: Data from the National Health Registry 2012¿2018 Daniel G. Fernández-Ávila; Diana N. Rincón-Riaño; Santiago Bernal-Macías; Juan M. Gutiérrez Dávila; Diego Rosselli;

Prevalence of inflammatory bowel disease and related arthritis in Colombia, according to information from the Health and Social Protection Data System Daniel G. Fernández-Ávila; Santiago Bernal-Macías; Viviana Parra-Izquierdo; Diana N. Rincón-Riaño; Juan M. Gutiérrez; Diego Rosselli;

Granulomatosis with polyangiitis and skin ulcers mimicking pyoderma gangrenosum: A case report of a diagnostic challenge Linda Navarrete-Motta; Onaldo-José Barrios; Sebastián Gil-Tamayo; Daniela Saaibi; Juan M. Gutiérrez; Daniel G. Fernández-Ávila; Santiago Bernal-Macías; Jorge L. Rodríguez; María-Claudia Díaz;