Epidemiological characterization of patients with sarcoidosis in a high complexity hospital in southwestern Colombia Mario Bautista-Vargas; Germán Puerta; Diego Fernando Scarpetta-González; Juan-David Marín; Nicolás Salazar-Otoya; Ivana Nieto-Aristizábal; David Aguirre-Valencia;

Lupus nephritis, an update María Cristina Martínez Ávila; Amilkar José Almanza Hurtado; Jesús Daniel Rodríguez Blanco; Tomás Rodríguez Yánez; Rodrigo Daza Arnedo; Gustavo Aroca Martínez;

Bone sarcoidosis: an unusual manifestation Claudia Mora-Karam; Enrique Calvo-Páramo; Eduardo Tuta Quintero; Luisa Fernanda Cardona Ardila;