PT - JOURNAL ARTICLE AU - PEARCE, J M S TI - The circle of Willis (1621–75) AID - 10.1136/jnnp.69.1.86 DP - 2000 Jul 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - 86--86 VI - 69 IP - 1 4099 - http://jnnp.bmj.com/content/69/1/86.short 4100 - http://jnnp.bmj.com/content/69/1/86.full SO - J Neurol Neurosurg Psychiatry2000 Jul 01; 69