id	keyword
cana-4451	skulls
cana-4451	vol
cana-4451	layer
cana-4451	classification
cana-4451	image
cana-4451	learning
cana-4451	doi
cana-4451	human
cana-4451	cnn
cana-4451	input
cana-4451	features
cana-4451	accuracy
cana-4451	analysis
cana-4451	data
cana-4451	recognition