{
	"age" : {
		"Description" : "age of the partecipant",
		"Units" : "years"
		},
	"sex" : {
		"Description" : "sex of the partecipant",
		"Levels" : {
			"M" : "Male",
			"F" : "Female"
			}
		},
	"group" : {
		"Description" : "experimental group. In this study all partecipants are young healthy subjects (HC)"
		},
	"MastoidDistance" : {
		"Description" : "Distance between mastoids passing through Cz",
		"Units" : "cm"
		},
	"NasionInionDistance" : {
		"Description" : "Distance between nasion and inion passing through Cz",
		"Units" : "cm"
		}
	}