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Figure 1 Haplotype block structure. (A) Schematic drawing of the 5′ portion of PDE4D spanning the six SNPs which contain the exons D7A‐2 and D7A‐1.5 (B) Haplotype block structure showing two haplotype blocks in the our German population (block A and block B) which correspond exactly to the haplotype blocks described in the Icelandic population.5 The D′ values (×100) are given in the blocks.
