Chronic Daily Headache With Analgesic OveruseNeurol 62:1338-1342, Colas,R.,et al, 2004
Analgesic Rebound as a Cause of Hemicrania ContinuaNeurol 48:1540-1541, Warner,J.S., 1997
Chronic Daily HeadacheNeurol 42:32-36, Sheftell,F.D., 1992