_:vb50937702 . _:vb50937702 . _:vb50937702 "url:http://www.ninds.nih.gov/disorders/dystonias/detail_dystonias.htm"^^ . _:vb50937702 "A focal dystonia that is characterized as dystonia that affects the muscles of the head, face, and neck."^^ . _:vb50937702 . _:vb50937702 . _:vb50937702 .