title: Making Causal Inferences From Observational Databases?
authors.affiliation: From the Department of Medicine, Loma Linda University Medical School, Loma Linda, Calif.; the Department of Psychiatry, University of Texas Southwestern Medical Center at Dallas; and the Office of Academic Affiliations, Department of Veterans Affairs, Washington, D.C.
authors.forename: T Michael
authors.initials: TM
authors.lastname: Kashner
mesh_terms: D016208:Databases, Factual; D006801:Humans
keywords: Epidemiology; Pain; Psychoactive Substance Use Disorder