[Studies on some habit-forming drugs with column chromatography].
D002845:Chromatography; D003061:Codeine; D006184:Habits; D006801:Humans; D004091:Hydromorphone; D009020:Morphine
D009020:Morphine; D004091:Hydromorphone; D003061:Codeine
CHROMATOGRAPHY; CODEINE; DIHYDROMORPHINONE; MORPHINE