Assessment of urinary TWEAK levels in Mexican patients with untreated lupus nephritis: An exploratory study Fabiola Reyes-Martínez, Monserrat Pérez-Navarro, Adrián Rodríguez-Matías, Virgilia Soto-Abraham, Gabriela Gutierrez-Reyes, Zaira Medina-Avila, Rafael Valdez-Ortiz

New Insights into the Evolution of Serum Calprotectin and Urinary CD163 in ANCA-Associated Vasculitis During Remission: an exploratory study Laura Martinez Valenzuela, Paula Anton Pàmpols, Francisco Gómez Preciado, Gema Fernandez-Juarez, Xavier Fulladosa Oliveras, Josep Maria Cruzado, Joan Torras Ambrós, Juliana Draibe

Diet and exercise induced hypokalemia João Oliveira, Joana Freitas, Inês Sala, Joana Tavares, Sofia Santos, António Cabrita