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Gel patterns demonstrating the 4 G and 5 G alleles in the promoter region of the PAI-1 gene. PCR products with a forward primer for the 4 G allele or the 5 G allele and a control upstream primer are indicated by 4 G or 5 G, respectively; Lanes 1 and 2 for patient A (4 G/5 G genotype); Lanes 3 and 4 for patient B (4 G/4 G genotype); and Lanes 5 and 6 for patient C (5 G/5 G genotype).
