RT Journal Article SR Electronic T1 Fifty years of progressive supranuclear palsy JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 938 OP 944 DO 10.1136/jnnp-2013-305740 VO 85 IS 8 A1 Carlo Colosimo A1 Thomas H Bak A1 Matteo Bologna A1 Alfredo Berardelli YR 2014 UL http://jnnp.bmj.com/content/85/8/938.abstract AB