Headache as the Only Neurological Sign of Cerebral Venous Thrombosis:A Series of 17 Cases
JNNP 76:1084-1087,1043, Cumurciuc,R.,et al, 2005
Headache at Stroke Onset:The Lausanne Stroke Registry
JNNP 58:490-492, Kumral,E.,et al, 1995
Diagnosing the Severe Headache
Neurol 44:S6-S12, Dalessio,D.J., 1994