PT - JOURNAL ARTICLE AU - L F HAAS TI - Hermann von Helmholtz (1821–94) AID - 10.1136/jnnp.64.6.787 DP - 1998 Jun 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - 787--787 VI - 64 IP - 6 4099 - http://jnnp.bmj.com/content/64/6/787.short 4100 - http://jnnp.bmj.com/content/64/6/787.full SO - J Neurol Neurosurg Psychiatry1998 Jun 01; 64