title: Vulnerable Patients and Potential Harms: The Contribution of Observational Research.
authors.affiliation: Drug Safety Research Unit, Bursledon Hall, Blundell Lane, Southampton, SO31 1AA, UK. deborah.layton@dsru.org.
authors.forename: Deborah
authors.initials: D
authors.lastname: Layton
mesh_terms: D019317:Evidence-Based Medicine; D006801:Humans; D012107:Research Design
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