RT Journal Article SR Electronic T1 Paroxysmal hemidystonia induced by prolonged exercise and cold. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 236 OP 237 DO 10.1136/jnnp.55.3.236 VO 55 IS 3 A1 G M Wali YR 1992 UL http://jnnp.bmj.com/content/55/3/236.abstract AB