cross validation human 41 Article 40 controlled study 33 Humans 28 female 26 male 26 machine learning 20 major clinical study 19 adult 16 prediction 16 article 14 diagnostic imaging 14 support vector machine 13 receiver operating characteristic 12 aged 11 convolutional neural network 11 deep learning 11 sensitivity and specificity 11 Deep Learning 10 algorithm 10 diagnostic test accuracy study 10 middle aged 10 random forest 10 nonhuman 9 nuclear magnetic resonance imaging 9 Deep learning 8 Female 8 Male 8 clinical article 8