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Histopathology of the skin in the proband (a-c), , in the clinically unaffected son who is heterozygous carrier with pathologic elastic fibers (d-f), and in the normal heterozygous older siblings (g-i and j-l). (2a, d, g, j: H&E, x200; 2b, e, h, k: von Kossa, x100;2c, f, i, l: elastic stain, x200).
