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Ratios for Twin 2 plotted against Twin 1 for each pair and coefficients of correlation. (A) Inner ratios plotted for MZ pairs. (B) Inner ratios plotted for DZ pairs. (C) Outer ratios plotted for MZ pairs. (D) Outer ratios plotted for MZ pairs. (E) Coefficients of intrapair correlation for MZ and DZ pairs.
