History of 50 years of the Rheumatology Service of Universidad Nacional de Colombia: The first in Colombia and a pioneer in Latin America Yimy F. Medina; Antonio Iglesias Gamarra;

Clinical characteristic and outcomes of psoriasis patients in a multicentre outpatient healthcare institution in Colombia Julio Roberto Amador; Carolina Becerra-Arias; Wilmer Gerardo Rojas-Zuleta; Juan Raul Castro-Ayarza; Manuel Franco; Mario Barbosa-Rengifo; Jorge Donado-Gómez; Natalia Duque-Zapata;

Pathological significance of sex hormones (testosterone and estrogen) associated with pro-inflammatory cytokines (IL-12, IL-17A, and IL-23) in patients with psoriasis and psoriatic arthritis Randa R. Ghamyes; AbdulKareem A. Alkazaz;