Cervicogenic headache: diagnostic criteria. The Cervicogenic Headache International Study Group.
Sjaastad
O
O
Department of Neurology, Trondheim University Hospital, Norway.
Fredriksen
T A
TA
Pfaffenrath
V
V
D006261:Headache / Q000145:classification / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D009333:Neck; D009407:Nerve Block