1963 prothrombin time test survey, College of American Pathologists, Standards Committee, Subcommittee on Coagulation.
D001769:Blood; D001780:Blood Coagulation Tests; D005612:Freeze Drying; D006801:Humans; D011517:Prothrombin Time; D013925:Thromboplastin / Q000032:analysis*
D013925:Thromboplastin