A Case Series on the Heightened Autonomic Response due to Guanfacine and Amphetamine Interaction. Issue 2 (April 2015) - Gaiser, Edward C.; Matuskey, David; Perkins, Evgenia; D'Amico, Cynthia; Abdelghany, Osama; McKee, Sherry A.; Cosgrove, Kelly P.