title: Street speed.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000662:Amphetamines; D002110:Caffeine; D004809:Ephedrine; D006801:Humans; D013287:Illicit Drugs; D008875:Middle Aged; D004364:Pharmaceutical Preparations; D010665:Phenylpropanolamine; D019966:Substance-Related Disorders / Q000209:etiology*
chemical_list: D000662:Amphetamines; D013287:Illicit Drugs; D004364:Pharmaceutical Preparations; D010665:Phenylpropanolamine; D002110:Caffeine; D004809:Ephedrine