title: Involuntary vacalization: two cases of Gilles de la Tourette's disease.
mesh_terms: D000293:Adolescent; D002648:Child; D006801:Humans; D008297:Male; D013981:Tic Disorders / Q000209:etiology; D005879:Tourette Syndrome / Q000150:complications / Q000503:physiopathology*; D014831:Voice