Asahina, H [Determination of morphine content of imported opium from 1964 to 1966]. [electronic resource] - Eisei Shikenjo hokoku. Bulletin of National Institute of Hygienic Sciences 1967 - 169-70 p. digital Publication Type: Journal Article ISSN: 0077-4715 Subjects--Topical Terms: Morphine--analysisOpium--analysis