title: Predictors for mortality due to acute exacerbation of COPD in primary care: protocol for the derivation of a clinical prediction rule.
authors.affiliation: Department of Healthcare Resources, Castile-Leon Regional Health Authority, Valladolid, Spain.
authors.forename: César
authors.initials: C
authors.lastname: Alameda
authors.affiliation: Los Comuneros Health Centre, Burgos Primary Care Authority, Burgos, Spain.
authors.forename: Ángel
authors.initials: Á
authors.lastname: Carlos Matía
authors.affiliation: Parquesol Health Centre, West Valladolid Primary Care Authority, Valladolid, Spain.|Department of Medicine, Dermatology and Toxicology, University of Valladolid, Valladolid, Spain.
authors.forename: Verónica
authors.initials: V
authors.lastname: Casado
mesh_terms: D003661:Decision Support Techniques; D006801:Humans; D011320:Primary Health Care; D029424:Pulmonary Disease, Chronic Obstructive / Q000401:mortality*; D012307:Risk Factors