References
- Aas Knut. Prokonvertin og konvertin. Diss., Oslo 1952
- Owren P. A. A quantitative one-stage method for the assay of prothrombin. Scandinav. J. Clin. Lab. Investigation 1949; 1: 81
- Owren P. A., Aas K. The control of dicumarol therapy and the quantitative determination of prothrombin and proconvertin. Scandinav. J. Clin. Lab. Investigation 1952; 4: 201