PT - JOURNAL ARTICLE AU - P. W. Nathan TI - INTERNATIONAL SYMPOSIUM ON PAIN AID - 10.1136/jnnp.38.6.624 DP - 1975 Jun 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - 624--624 VI - 38 IP - 6 4099 - http://jnnp.bmj.com/content/38/6/624.1.short 4100 - http://jnnp.bmj.com/content/38/6/624.1.full SO - J Neurol Neurosurg Psychiatry1975 Jun 01; 38