%0 Journal Article %T Taphoorn et al reply %D 1989 %R 10.1136/jnnp.52.5.685 %J Journal of Neurology, Neurosurgery & Psychiatry %P 685-685 %V 52 %N 5 %U https://jnnp.bmj.com/content/jnnp/52/5/685.1.full.pdf