'Keepsake' Sonograms May Be Skewing Birth Sex Ratios

'Keepsake' Sonograms May Be Skewing Birth Sex Ratios: The commercial availability of reasonably priced 4-dimensional ultrasound machines has enabled the proliferation of storefront businesses that offer so-called 'keepsake' high-resolution sonograms. Although a direct causal link cannot be proven, the presence of these businesses in predominantly Asian and South Asian communities correlates with an observed imbalance in live birth sex ratios favoring boys over girls.