. "Frantzidis" . "7eb79297895dc433d8cd329053489a41" . "Christos A. Frantzidis" . . "Wavelet Entropy"@en . "Christos" . "Mahalanobis Distance Classifier"@en . "Electroencephalography"@en . "Neuropsychological Estimation"@en . "Geriatric Depression"@en . "Mild Cognitive Impairment"@en .