Adverse Cardiovascular and Central Nervous System Events Associated with Dietary Supplements Containing Ephedra Alkaloids
NEJM 343:1833-1838,1886, Haller,C.A. & Benowitz,N.L., 2000
Hypertensive Encephalopathy:A Clinicopathologic Study of 20 Cases
Neurol 28:928-939, Chester,E.M.,et al, 1978