Aims To determine whether and to what extent acute cannabis intoxication increases motor
vehicle crash risk. Design Study 1 replicates two published meta‐analyses, correcting for …

This review summarizes evidence on the effects of cannabis use on the development of
adolescents and young adults. It draws on epidemiological studies, neuroimaging studies …

“A grave problem that developed in New Hampshire… now has all the motor-vehicle
commissioners of the eastern states in a wax. It's whether radios should be allowed on cars …

While the extent of use of alcohol by drivers and the risks posed by alcohol use have been
well known for many decades, relatively little has been known about the use of other drugs …

Drugged driving is a serious safety concern, but its role in motor vehicle crashes has not
been adequately studied. Using a case-control design, the authors assessed the association …

Background and aims Cannabis and alcohol are frequently detected in fatal and injury motor
vehicle crashes. While epidemiological meta‐analyses of cannabis and alcohol have found …

Objective: The purpose of this study was to determine (a) whether among sober (blood
alcohol concentration [BAC]=. 00%) drivers, being drug positive increases the drivers' risk of …

Background: The effects of drugs on driving performance should be checked with drug
concentration in the brain and at the same time with the evaluation of both the behavioural …

Driving with alcohol and other psychoactive substances imposes an increased risk of severe
injury accidents. In a population-based case–control design, the relative risks of severe …

Introduction Driving while intoxicated is a major risk factor for road traffic crashes, and it is
important to understand the global developments, differences between countries, and …