The Parkinson's Disease Composite of Executive Functioning: A Measure for Detecting Cognitive Decline in Clinical Trials.

Young CB, Cholerton B, Smith AM, Shahid-Besanti M, Abdelnour C, Mormino EC, Hu SC, Chung KA, Peterson A, Rosenthal L, Pantelyat A, Dawson TM, Quinn J, Zabetian CP, Montine TJ, Poston KL.