title: Mild cognitive impairment or questionable dementia?
authors.forename: R C
authors.initials: RC
authors.lastname: Petersen
mesh_terms: D000368:Aged; D000544:Alzheimer Disease / Q000175:diagnosis*; D003072:Cognition Disorders / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D012720:Severity of Illness Index