title: Morphine and codeine in poppy seed.
mesh_terms: D002849:Chromatography, Gas; D003061:Codeine / Q000032:analysis*; D013058:Mass Spectrometry; D009020:Morphine / Q000032:analysis*; D010207:Papaver / Q000032:analysis*; D010946:Plants, Medicinal; D012639:Seeds / Q000032:analysis*
chemical_list: D009020:Morphine; D003061:Codeine