Studies of drugs given before anaesthesia. XVII: The natural and semi-synthetic opiates.
D002986:Clinical Trials as Topic; D003061:Codeine / Q000009:adverse effects; D005260:Female; D003932:Heroin / Q000009:adverse effects; D006801:Humans; D004091:Hydromorphone / Q000009:adverse effects; D009020:Morphine / Q000009:adverse effects; D010111:Oxymorphone; D010919:Placebos; D011229:Preanesthetic Medication
D010919:Placebos; D003932:Heroin; D009020:Morphine; D010111:Oxymorphone; D004091:Hydromorphone; D003061:Codeine