1. Activated clotting time in the control of heparin therapy;Allison;Bull Geisinger Med Cent,1969
2. Experimental studies of heparin-protamine activity with special reference to protamine inhibition of clotting;Anderson;Surgery,1959
3. Reduced protamine dosage for heparin neutralization in open-heart operations;Berger;Cardiovasc Surg,1967
4. A rapid bedside method for control of heparin therapy;Blakeley;Can Med Assoc J,1968
5. Must heparin be neutralized following open heart surgery?;Castaneda;J Thorac Cardiovasc Surg,1966