| coagulation factor IX |
plasma thromboplastin component (PTC) - A relatively storage-stable substance involved in the intrinsic pathway of blood coagulation; upon activation, it activates factor X (see below). Deficiency results in a hemorrhagic syndrome called hemophilia B, resembling hemophilia A. Called also autoprothrombin II, Christmas factor, and antihemophilic factor B.
Ãâó: www.ndif.org/Terms/factor.html
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