Infarction of the Medulla and Cervical Cord after Fitness Exercises
Stroke 20:292-294, Pryse-Phillips,W., 1989
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Neurol 39:512-515, Mas,J.L.,et al, 1989
Vertebrobasilar Injuries Following Cervical Manipulation
JAMA 244:1450-1453, Schellhas,K.P.,et al, 1980