Headache and Altered Mental Status
Neurol 90:e1267-e1270, Spera, K.M.,et al, 2018
Clinicopath Conf., Atypical Hemolytic-Uremic Syndrome
NEJM 361:389-400, Case 23-2009, 2009
Chronic headache:Appropriate Use of Opiate Analgesics
Neurol 44:S18-S24, Markley,H.G., 1994