title: Organic vs. psychogenic tics.
authors.forename: Aline
authors.initials: A
authors.lastname: Sampaio
authors.forename: Ana G
authors.initials: AG
authors.lastname: Hounie
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D020323:Tics / Q000145:classification / Q000175:diagnosis / Q000209:etiology; D005879:Tourette Syndrome / Q000150:complications