PT - JOURNAL ARTICLE AU - Thomas A Pollak TI - What a jerk: perils in the assessment of psychogenic movement disorders AID - 10.1136/jnnp-2012-304682 DP - 2013 Feb 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - jnnp-2012-304682 4099 - http://jnnp.bmj.com/content/early/2013/02/21/jnnp-2012-304682.short 4100 - http://jnnp.bmj.com/content/early/2013/02/21/jnnp-2012-304682.full