title: Why internal and external validity of experimental studies are relevant for clinical practice?
authors.affiliation: Department of Medicine and Public Health, Section of Psychiatry and Clinical Psychology, University of Verona, Verona, Italy. andrea.cipriani@univr.it
authors.forename: Andrea
authors.initials: A
authors.lastname: Cipriani
authors.forename: Marianna
authors.initials: M
authors.lastname: Purgato
authors.forename: Corrado
authors.initials: C
authors.lastname: Barbui
mesh_terms: D035843:Biomedical Research / Q000706:statistics & numerical data*; D016032:Randomized Controlled Trials as Topic / Q000706:statistics & numerical data*; D015203:Reproducibility of Results