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. Author manuscript; available in PMC: 2009 Dec 1.
Published in final edited form as: Contraception. 2008 Aug 28;78(6):451–458. doi: 10.1016/j.contraception.2008.07.004

Fig. 2.

Fig. 2

A simplified illustration of the coagulation cascade. Activated protein C (APC) exerts an anticoagulant effect primarily through inhibition of factor V. Protein S is required for this interaction.