title: Mass fragmentography of morphine and 6-monoacetylmorphine in blood with a stable isotope internal standard.
mesh_terms: D000818:Animals; D002849:Chromatography, Gas; D003903:Deuterium; D004355:Drug Stability; D008401:Gas Chromatography-Mass Spectrometry; D003932:Heroin / Q000378:metabolism; D006868:Hydrolysis; D008297:Male; D013058:Mass Spectrometry; D008722:Methods; D009020:Morphine / Q000097:blood* / Q000138:chemical synthesis; D009022:Morphine Derivatives; D011817:Rabbits; D013997:Time Factors
chemical_list: D009022:Morphine Derivatives; D003932:Heroin; D009020:Morphine; D003903:Deuterium