PT - JOURNAL ARTICLE AU - Ralph Johnson TI - VASOACTIVE SUBSTANCES RELEVANT TO MIGRAINE AID - 10.1136/jnnp.40.1.100-a DP - 1977 Jan 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - 100--100 VI - 40 IP - 1 4099 - http://jnnp.bmj.com/content/40/1/100.2.short 4100 - http://jnnp.bmj.com/content/40/1/100.2.full SO - J Neurol Neurosurg Psychiatry1977 Jan 01; 40