Martínez-Castelao, AlbertoGórriz, José LPortolés, José MDe Alvaro, FernandoCases, AleixLuño, JoséNavarro-González, Juan FMontes, Rafaelde la Cruz-Troca, Juan JNatarajan, AparnaBatlle, Daniel2012-01-302012-01-302011-10-05Martínez-Castelao A, Gorriz JL, Portolés JM, De Alvaro F, Cases A, Luño J, Navarro-González JF, et al. Baseline characteristics of patients with chronic kidney disease stage 3 and stage 4 in Spain: the MERENA observational cohort study. BMC Nephrology 2011, 12:53http://hdl.handle.net/10668/291To 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)enMedical Subject Headings::Diseases::Male Urogenital Diseases::Urologic Diseases::Kidney DiseasesMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Data Collection::Vital Statistics::MorbidityMedical Subject Headings::Geographicals::Geographic Locations::Europe::Spainresearch article21970625open access10.1186/1471-2369-12-531471-2369PMC3203029