We already knew this, didn't we? They studied it anyway:
http://www.springerlink.com/content/w332410717763632/
From the study:
"CONCLUSION Although it has been argued that prescription tracking benefits public health, data gathered by HIOs is designed for marketing
drugs. These data are sequestered by industry and are not generally available for genuine public health purposes."
Anybody see that Will Smith movie - what was it, the one with only 1 satelite in space?