Introduction

Factor IX plays an important role in blood coagulation. Hereditary deficiency of factor IX leads to the bleeding disorder hemophilia B, which is clinically indistinguishable from the more common hemophilia A (Factor VIII deficiency). Hemophilia B is a recessively inherited X-linked disorder with a world-wide incidence of 1/30,00050,000. Advances in our knowledge of the factor IX protein and its functional activity and in the factor IX gene and the genetic defects associated with hemophilia B have led to major diagnostic and therapeutic advances in this disorder.

Getting Started With Dumbbells

Getting Started With Dumbbells

The use of dumbbells gives you a much more comprehensive strengthening effect because the workout engages your stabilizer muscles, in addition to the muscle you may be pin-pointing. Without all of the belts and artificial stabilizers of a machine, you also engage your core muscles, which are your body's natural stabilizers.

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