A: Control 
B. 10^ pfu/ml 
C. 10 7 pfu/ml 
D. 10 8 pfu/ml 
E. 10^ pfu/ml 
Figure 4. Dose-effect relationship between pfu/ml Ad5-CMV-lacZ and lacZ 
expression in cultured mouse airway cells. (200X magnification). 
Recombinant DNA Research, Volume 17 
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