PT - JOURNAL ARTICLE AU - J. A. Simpson TI - Advanced Medicine 14 AID - 10.1136/jnnp.42.5.481-a DP - 1979 May 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - 481--481 VI - 42 IP - 5 4099 - http://jnnp.bmj.com/content/42/5/481.2.short 4100 - http://jnnp.bmj.com/content/42/5/481.2.full SO - J Neurol Neurosurg Psychiatry1979 May 01; 42