title: Relapse to morphine use in dog.
mesh_terms: D000661:Amphetamine; D000818:Animals; D004195:Disease Models, Animal; D004285:Dogs; D006801:Humans; D009020:Morphine; D009021:Morphine Dependence; D012008:Recurrence; D012651:Self Medication; D013375:Substance Withdrawal Syndrome; D019966:Substance-Related Disorders
chemical_list: D009020:Morphine; D000661:Amphetamine