1. Standardization of the one-stage prothrombin-time of anticoagulant therapy;Biggs;Brit. med. J.,1967
2. Kinetic aspects of the interaction of blood clotting enzymes. III. Demonstration of an inhibitor of prothrombin conversion in vitamin K deficiency;Hemker;Thrombos, Diathes. haemorrh. (Stuttg.),1968
3. The control of dicumarol therapy and the quantitative determination of prothrombin and proconvertin;Owren;Scand. J. clin. Lab. Invest.,1951
4. The interrelationship between normotest and thrombotest;Owren;Farmakoterapi,1969
5. A national standard for anticoagulant therapy. The Manchester comparative reagent;Poller;Thrombos. Diathes. haemorrh. (Stuttg.),1967