这里的“to”是否应为“or”？

Was a Role Off Activated Recombinant Factor VII (RFVIIa) in Patients with Hemophilia? HowShould It Be Administered?

Recombinant activated Factor VII (rFVIIa) or activated PCC(aPCC) can be useful in the treatment of bleeding episodes in patients with hemophilia, [10] acquired hemophilia A [3] and with inhibitors against exogenous FVIII [10]. They are considered bypass drugs, because FVIIa directly complexes with the tissue factor exposed at the site of tissue injury, activates Factor X and produces local hemostasis, while activated PCC have enough FXa to activate prothrombin to thrombin. The pathway is independent of FVIII to FIX and is not affected by their inhibition. As FVIIa has a short half-life (approximately 2 h), it may need to be administered frequently, [2] while aPCC has a longer half-life of about 7 h

老师，这里的“to”是否应为“or”？

我自己觉得to也可以，可以理解为：独立于  8因子到9因子 的途径，别人问我的？