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;

The coexistence of rheumatoid arthritis and ankylosing spondylitis: Case series and literature review Hanene Lassoued Ferjani; Ben Ayed Hiba; Dorra Ben Nessib; Dhia Kaffel; Kaouther Maatallah; Wafa Hamdi;

Prevalence of comorbidities and use of medication in psoriatic arthritis patients: findings from a Mexican cohort David Vega-Morales; Alejandro Garza-Alpirez; María Fernanda Martínez-Guerra; Alondra Elizabeth Montoya-Montes;