The Neuroprotective Effects of Caffeine: A Prospective Population Study (the Three City Study)
Neurol 69:536-545, Ritchie,K.,et al, 2007
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