title: Recognizing the chemical abuser.
mesh_terms: D002491:Central Nervous System Agents; D002492:Central Nervous System Depressants; D003729:Dental Care; D006213:Hallucinogens; D006801:Humans; D019966:Substance-Related Disorders / Q000175:diagnosis*
chemical_list: D002491:Central Nervous System Agents; D002492:Central Nervous System Depressants; D006213:Hallucinogens