Role of pyrophosphate in vascular calcification in chronic kidney disease Daniel Azpiazu, Sergio Gonzalo, Emilio González-Parra, Jesús Egido, Ricardo Villa-Bellosta

External validation of a predictive model for one-year mortality in incident hemodialysis patients: A Portuguese cohort Telma Pais, Beatriz Teixeira, Miguel Carrilho, José Agapito Fonseca, Cristina Outerelo, Sofia Jorge, Cristina Resina, José António Lopes, Joana Gameiro

Healthcare models, quality indicators and quality of care in the management of patients with chronic kidney disease in Spain: Results from the CARABELA-CKD initiative Mercedes Salgueira, Pedro Ruiz, Jesús Ignacio Diago, Manuel Pérez Maraver