are categorized as no cognitive impairment (NCI). A similar decision tree also is employed to aid the diagnosis of stroke, cognitive impairment due to stroke (vascular dementia), parkinsonism, Parkinson's disease (PD), and depression following accepted criteria [34–36]. The evaluation is designed to reduce costs and enhance uniformity of diagnostic decisions over time and space [37,38]. Other less common diagnoses are made by contemporary standards [39].
