PT - JOURNAL ARTICLE ED - , TI - The Common Headache Syndromes AID - 10.1212/WNL.13.9.810 DP - 1963 Sep 01 TA - Neurology PG - 810--810 VI - 13 IP - 9 4099 - http://n.neurology.org/content/13/9/810.1.short 4100 - http://n.neurology.org/content/13/9/810.1.full SO - Neurology1963 Sep 01; 13