1. CNS depression from intrathecal morphine;Davies;Anesthesiology,1980
2. Respiratory depression after intrathecal narcotics;Davies;Anaesthesia,1980
3. Postoperative respiratory depression due to morphine injection with local anaesthetic into the subarachnoid space;Shimizu;Japanese Journal of Anesthesiology,1980
4. Postoperative pain control with intrathecal morphine;Giessing;Anaesthesia,1981
5. Analgesic effect of a small dose of intrathecally administrated morphine for the relief of postoperative pain;Asano;Shimane Journal of Medical Science,1981