The elbow flex-ex: a new sign to detect unilateral upper extremity non-organic paresis
Thomas L Lombardi, Edward Barton, Jingtian Wang, Dawn S Eliashiv, Jeffrey M Chung, Abirami Muthukumaran, Evgeny I Tsimerinov
Journal of Neurology, Neurosurgery & Psychiatry Feb 2014, 85 (2) 165-167; DOI: 10.1136/jnnp-2012-304314