Article
Geographic variations of the prevalence and distribution of COPD phenotypes in Spain: "the ESPIRAL-ES study".
International journal of chronic obstructive pulmonary disease - 1 Jan 2000
Alcázar-Navarrete Bernardino, Trigueros Juan Antonio, Riesco Juan Antonio, Campuzano Anna, Pérez Joselín
Abstract excerpt
PURPOSE: The purpose of this study was to assess the prevalence of COPD phenotypes at a national level and to determine their geographic distribution among different autonomous communities in Spain. PATIENTS AND METHODS: A total of 1,610 patients (82% men, median age 67 years) recruited in primary care centers and pneumology services participated in an observational, cross-sectional, and multicenter study....
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