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Aims
To examine changes in the evidence on the adverse health effects of cannabis since 1993.
Methods
A comparison of the evidence in 1993 with the evidence and interpretation of the same health outcomes in 2013.
Results
Research in the past 20 years has shown that driving while cannabis‐impaired approximately doubles car crash risk and that around one in 10 regular cannabis users develop dependence...
Background and Aims
Second‐hand smoke (SHS) exposure is associated negatively with childhood behavioural problems in western settings. In a developed non‐western setting, we estimated the associations of early SHS exposure during the prenatal and postnatal periods with several aspects of adolescent mental health.
Design
Multivariable linear regression was used to estimate the adjusted associations...
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