Factors associated with development of end stage renal disease during hospitalization in patients with microscopic polyangiitis and granulomatosis with polyangiitis in a population of northwestern Colombia Santiago Cobaleda Cano; Andrés Felipe Echeverri García; Adriana Margarita Trejos Tenorio; Javier Darío Márquez Hernández; Jhon Edwar García Rueda; Luis Fernando Pinto Peñaranda;

Systemic lupus erythematosus: Pharmacological differences between women and men and among age groups and geographical regions Luis Fernando Valladales-Restrepo; Camilo Alexander Constain-Mosquera; María Clara Mesa-Ardila; Jorge Enrique Machado-Alba;

Characteristics of rheumatic patients who consult digital information sources Maria Pía Izaguirre Germain; Paola Ávila; Nauan Fara; Julia Pretini; María Elena Gaona; Pia Pissani; Maira Arias Saavedra; Valeria Aquino; Mariana Espindola Echazu; Manuela Laffont; Magdalena Acevedo; Lucrecia Garcia Faura; Romina Hassan; Karen Roberts; Jorge Alejandro Brigante; Damaris Álvarez; Marina Laura Micelli; Vanesa Laura Cosentino; Sandra Fabiana Montoya; Gabriel Sequeira; Eduardo Mario Kerzberg;