title: Epigenetic and environmental risk factors in Tourette syndrome.
authors.affiliation: Division of Child and Adolescent Psychiatry, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
authors.forename: J T
authors.initials: JT
authors.lastname: Walkup
mesh_terms: D004777:Environment; D020022:Genetic Predisposition to Disease; D006801:Humans; D012307:Risk Factors; D005879:Tourette Syndrome / Q000453:epidemiology* / Q000235:genetics*