%0 Journal Article %T Effect of the addition of ketamine to morphine in patient‐controlled analgesia %A Murdoch, C. J. %A Crooks, B. A. %A Miller, C. D. %J Anaesthesia %V 57 %N 5 %@ 0003-2409 %D 2002-05-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve