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Factor II, Factor V, and Factor X Deficiencies
Introduction Inherited deficiencies of factors II, V, and X (FII, FV, and FX) are rare (estimated frequencies are FII, 1 in 2,000,000; FV, 1 in 1,000,000; and FX, 1 in 1,000,000). Patients who are homozygous or compound heterozygous for defects…