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The Singular World of Twins and Twin Studies.
by Dr. Nancy L. Segal
Dr. Nancy L. Segal is a Professor of Psychology and Director of the Twin Studies Center, at California State University, Fullerton. See full bio
April 24, 2008, Child Development

Comments on "Quadruplet Varieties"

Quadruplet Varieties

By Nancy L. Segal on April 24, 2008 in Twofold

Quads come in all shapes and sizes Read More

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