PT - JOURNAL ARTICLE AU - Halker, Rashmi B. AU - Hastriter, Eric V. AU - Dodick, David W. TI - Chronic Daily Headache AID - 10.1212/WNL.0b013e31820d5f32 DP - 2011 Feb 15 TA - Neurology PG - S37--S43 VI - 76 IP - 7 Supplement 2 4099 - http://n.neurology.org/content/76/7_Supplement_2/S37.short 4100 - http://n.neurology.org/content/76/7_Supplement_2/S37.full SO - Neurology2011 Feb 15; 76