title: Opium eating and the working class in the nineteenth century: the public and official reaction.
mesh_terms: D003132:Commerce; D004739:England; D049672:History, 19th Century; D006801:Humans; D009892:Opium; D011639:Public Opinion; D012922:Social Change; D012923:Social Class; D019966:Substance-Related Disorders / Q000266:history*
chemical_list: D009892:Opium