1. Artificial reagents for factor VII and factor X, a computer programme for obtaining reference tables for one-stage determinations in the extrinsic system;Hemker;Thromb. Diath. Haemorrh.,1972
2. An assay for coagulant factor VII using factor VII-depleted bovine plasma;Nemerson;J. Lab. Clin. Med.,1974
3. Experiment on a new clotting factor (factor VII);Koller;Acta Haematol.,1951
4. A new assay for factor V (proaccelerin-accelerin) using Russel's viper venom;Borchgrevink;J. Lab. Clin. Med.,1960
5. A quantitative one-stage method for the assay of prothrombin;Owren;Scand. J. Clin. Lab. Invest.,1949