title: Respiratory depression following only 0.4 mg of intrathecal morphine.
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D007278:Injections, Spinal; D009020:Morphine / Q000009:adverse effects*; D012131:Respiratory Insufficiency / Q000139:chemically induced*
chemical_list: D009020:Morphine