title: How can we best categorize cognitive impairment in nondemented older adults?
authors.forename: Perminder S
authors.initials: PS
authors.lastname: Sachdev
authors.forename: Mary
authors.initials: M
authors.lastname: Ganguli
authors.forename: Ronald C
authors.initials: RC
authors.lastname: Petersen
mesh_terms: D000368:Aged; D003072:Cognition Disorders / Q000175:diagnosis*; D003704:Dementia / Q000175:diagnosis*; D003937:Diagnosis, Differential; D042241:Early Diagnosis; D015577:Geriatric Assessment / Q000379:methods*; D006801:Humans; D009483:Neuropsychological Tests