Red Arrows Indicate Brain Activating System
Lighter Yellow and Black Cross Hatching Areas: Mild to Moderate Poliovirus Damage.
Darker Yellow and Black Cross Hatching Areas: the Most Severe Poliovirus Damage.
Source: Dr. David Bodian
Red Arrows Indicate Brain Activating System
Lighter Yellow and Black Cross Hatching Areas: Mild to Moderate Poliovirus Damage.
Darker Yellow and Black Cross Hatching Areas: the Most Severe Poliovirus Damage.
Source: Dr. David Bodian