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Heparin therapy: A simpler test of control
  1. Anthony J. Handley1
  1. Department of Medicine, Westminster Hospital, London


    A bedside test of heparin activity (whole blood activated partial thromboplastin time) was assessed during clinical control of anticoagulation. It correlated closely (r = 0·94) with the whole blood clotting time but had a number of advantages.

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    • 1 Present address: Brompton Hospital, Fulham Road, London, SW3 6HP.