Brain and plasma concentrations of morphine during the development of physical dependence and tolerance.
D000818:Animals; D001923:Brain Chemistry; D004361:Drug Tolerance; D006801:Humans; D007928:Lethal Dose 50; D008297:Male; D009020:Morphine / Q000032:analysis* / Q000097:blood; D009021:Morphine Dependence / Q000097:blood*; D051381:Rats
D009020:Morphine