Fig. 2From: Quantification of identifying cognitive impairment using olfactory-stimulated functional near-infrared spectroscopy with machine learning: a post hoc analysis of a diagnostic trial and validation of an external additional trialReceiver operating characteristic curve of our models: the classification of MCI-AD and CN and the classification of MCI and CN. CN, cognitively normal; MCI, mild cognitive impairment; AD, Alzheimer’s diseaseBack to article page