title: [Morphine content of Japanese opium harvested during 1976-1980].
mesh_terms: D007564:Japan; D009020:Morphine / Q000032:analysis*; D009892:Opium / Q000032:analysis*; D010207:Papaver / Q000032:analysis; D010946:Plants, Medicinal
chemical_list: D009020:Morphine; D009892:Opium