Predictors of Intracranial Path Findings in Pts Who Seek ER Care Because of Headache
Arch Neurol 54:1506-1509, Ramirez-Lassepas,M.,et al, 1997
Diagnosing the Severe Headache
Neurol 44:S6-S12, Dalessio,D.J., 1994
Challenges in the Diagnosis of Acute Headache
Headache 30 Suppl 2:537-540, Edmeads,J., 1990