title: [Significance of the prospective design in clinical research projects].
authors.forename: J D
authors.initials: JD
authors.lastname: García Díaz
authors.forename: J M
authors.initials: JM
authors.lastname: Guerra Vales
mesh_terms: D015331:Cohort Studies; D011446:Prospective Studies; D012107:Research Design; D012189:Retrospective Studies
vernacular_title: Significado del diseño prospectivo en los trabajos de investigación clínica.