title: Clinical prediction models are not being validated.
authors.forename: Peter
authors.initials: P
authors.lastname: Tugwell
authors.forename: J André
authors.initials: JA
authors.lastname: Knottnerus
mesh_terms: D015897:Comorbidity; D004812:Epidemiologic Methods; D006801:Humans; D015233:Models, Statistical; D009026:Mortality; D015203:Reproducibility of Results; D012307:Risk Factors; D017216:Telemedicine