title: [Comparative study on the extraction of morphine from biological material].
mesh_terms: D006868:Hydrolysis; D009020:Morphine / Q000097:blood / Q000302:isolation & purification*
chemical_list: D009020:Morphine
vernacular_title: Sravnitel'noe izuchenie ékstragirovaniia morfina iz biologicheskogo materiala.