1. Essential tremor;Larsen;Clin Neuropharmacol,1983
2. Dystonia: an overview;Zeman;Adv Neurol,1976
3. Dystonia: the spectrum of the disease;Marsden,1976
4. Torsion dystonia;Paulson,1985
5. Meige syndrome: relief on high-dose anticholinergic therapy;Duvoisin;Clin Neuropharmacol,1983