RT Journal Article SR Electronic T1 More than movement: the importance of the evolution of mild cognitive impairment in Parkinson's disease JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 2 OP 2 DO 10.1136/jnnp-2013-305392 VO 85 IS 1 A1 Alejandro Bottini Bonfanti YR 2014 UL http://jnnp.bmj.com/content/85/1/2.abstract AB