Clinical and sociodemographic factors associated with lupus nephritis in Colombian patients: A cross-sectional study Juan C. Díaz-Coronado; Adriana Rojas-Villarraga; Deicy Hernandez-Parra; Laura Betancur-Vásquez; Jorge Lacouture-Fierro; Daniel Gonzalez-Hurtado; Juanita González-Arango; Laura Uribe-Arango; Maria C. Gaviria-Aguilar; Ricardo A. Pineda-Tamayo;

Impact of the COVID-19 pandemic on psychosocial health in rheumatic patients: A longitudinal study Laura Cano-García; Sara Manrique-Arija; Rocío Redondo-Rodríguez; Marta Vera-Ruiz; Jose Manuel Lisbona-Montañez; Arkaitz Mucientes-Ruiz; Aimara García-Studer; Fernando Ortiz-Marquez; Natalia Mena-Vázquez; Antonio Fernández-Nebro;

Severe and life-threatening onset of systemic lupus erythematosus Ana Martins; Sofia Pimenta; Daniela Oliveira; Frederico Martins; Beatriz Samões; Lúcia Costa;