title: Gains in oral tests.
mesh_terms: D000284:Administration, Oral; D003042:Cocaine / Q000032:analysis; D019970:Cocaine-Related Disorders / Q000175:diagnosis*; D003955:Diagnostic Tests, Routine; D015658:HIV Infections / Q000175:diagnosis*; D015497:HIV-1 / Q000302:isolation & purification; D006801:Humans; D007352:Insurance, Life; D009538:Nicotine / Q000032:analysis; D014029:Tobacco Use Disorder / Q000175:diagnosis*
chemical_list: D009538:Nicotine; D003042:Cocaine