title: [Intention to treat and follow up are important in assessing validity of a randomized clinical trial].
authors.affiliation: Unidad de Medicina Basada en Evidencia y Departamento de Medicina Interna, Pontificia Universidad Católica de Chile.
authors.forename: Daniel
authors.initials: D
authors.lastname: Capurro
authors.forename: Luigi
authors.initials: L
authors.lastname: Gabrielli
authors.forename: Luz María
authors.initials: LM
authors.lastname: Letelier
mesh_terms: D019317:Evidence-Based Medicine / Q000592:standards*; D005500:Follow-Up Studies; D006801:Humans; D016032:Randomized Controlled Trials as Topic / Q000592:standards*; D015203:Reproducibility of Results; D012107:Research Design / Q000592:standards*