title: The Importance of Validation Studies in Perioperative Database Research.
authors.affiliation: From the Department of Anesthesiology and Critical Care, and the Department of Internal Medicine, Division of Geriatric Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania; and Leonard Davis Institute for Health Economics, the University of Pennsylvania, Philadelphia, Pennsylvania.
authors.forename: Mark D
authors.initials: MD
authors.lastname: Neuman
mesh_terms: D016208:Databases, Factual / Q000592:standards*; D005260:Female; D006739:Hospital Administration / Q000592:standards*; D006801:Humans; D008297:Male; D020181:Sleep Apnea, Obstructive / Q000175:diagnosis* / Q000453:epidemiology*