| http://www.w3.org/ns/prov#value | - Self-reports of alcohol, marijuana, stimulants, sedatives, hallucinogens and other drug use were used to predict subsequent school attendance, after controlling for demographic and drug use history characteristics, problem indices and other covariates.FINDINGS: Reductions in the frequency of alcohol, stimulants and other drug use and the elimination of marijuana use were each associated independen
|
