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
Neurologic Manifest. of Infective Endocarditis:A Review
Stroke 4:958, Greenlee,J.E.,et al, 1973