title: Confusion: testing versus observation.
authors.forename: M A
authors.initials: MA
authors.lastname: Williams
authors.forename: S E
authors.initials: SE
authors.lastname: Ward
authors.forename: E B
authors.initials: EB
authors.lastname: Campbell
mesh_terms: D000368:Aged; D003072:Cognition Disorders / Q000175:diagnosis*; D003221:Confusion / Q000175:diagnosis*; D006801:Humans; D008609:Mental Status Schedule; D010347:Patient Care Planning; D011569:Psychiatric Status Rating Scales