Chronic Daily Headache
Neurol 42:32-36, Sheftell,F.D., 1992
Risk Development of Medication Overuse Headache With Nonsteroidal Anti-inflammatory Drug Therapy for Migraine A Critically Appraised Topic
The Neurologist 17:297-299, Starling, A.J.,et al, 2011
Chronic Daily Headache With Analgesic Overuse
Neurol 62:1338-1342, Colas,R.,et al, 2004