Abstracts of several studies
http://www.ukcia.org/research/medline/8.htm
Cannabis and driving
http://www.ukcia.org/research/driving4.html
CANNABIS AND ROAD SAFETY
http://www.ukcia.org/research/driving2.htm
Marijuana And Actual Driving Performance
http://www.ukcia.org/research/driving.htm
Cannabis and Driving: A Scientific and Rational Review
http://norml.org/index.cfm?Group_ID=7459
Fitness to drive in spite (because) of THC
http://www.unboundmedicine.com/medli…use__of_THC%5D