Richter, K [A human plasma fraction (PPSB) enriched with the coagulation factors II, VII, IX and X]. [electronic resource] - Folia haematologica (Leipzig, Germany : 1928) 1970 - 340-3 p. digital Publication Type: Journal Article ISSN: 0323-4347 Subjects--Topical Terms: AdsorptionAnticoagulantsApatitesBlood Coagulation Factors--isolation & purificationBlood TransfusionCalciumCitratesFactor IX--isolation & purificationFactor VII--isolation & purificationFactor X--isolation & purificationHumansPhosphatesProthrombin--isolation & purification