Drug and alcohol abuse education: opinions of school principals.
D000288:Administrative Personnel; D000293:Adolescent; D000428:Alcohol Drinking; D001290:Attitude; D002648:Child; D006266:Health Education; D006801:Humans; D012574:Schools; D019966:Substance-Related Disorders / Q000517:prevention & control; D013663:Teaching; D014861:Washington