title: Dogs detecting drugs.
mesh_terms: D000818:Animals; D002170:Canada; D003042:Cocaine; D004285:Dogs; D005860:Germany, West; D003932:Heroin; D004364:Pharmaceutical Preparations; D013548:Sweden; D014481:United States
chemical_list: D004364:Pharmaceutical Preparations; D003932:Heroin; D003042:Cocaine