%0 Journal Article %A Martínez-Castelao, Alberto %A Górriz, José L %A Portolés, José M %A De Alvaro, Fernando %A Cases, Aleix %A Luño, José %A Navarro-González, Juan F %A Montes, Rafael %A de la Cruz-Troca, Juan J %A Natarajan, Aparna %A Batlle, Daniel %T Baseline characteristics of patients with chronic kidney disease stage 3 and stage 4 in Spain: the MERENA observational cohort study. %D 2011 %U http://hdl.handle.net/10668/291 %X To obtain information on cardiovascular morbidity, hypertension control, anemia and mineral metabolism based on the analysis of the baseline characteristics of a large cohort of Spanish patients enrolled in an ongoing prospective, observational, multicenter study of patients with stages 3 and 4 chronic kidney diseases (CKD) %~