title: [Estimation of the necessary number of cases for a clinical study].
authors.forename: J A
authors.initials: JA
authors.lastname: Rozlosnik
authors.forename: M
authors.initials: M
authors.lastname: Ciruzzi
mesh_terms: D011336:Probability; D012107:Research Design / Q000706:statistics & numerical data*
vernacular_title: Estimación del número de casos necesarios para una investigación clínica.