Immune System Cell Clones Created Before Birth May Last for Decades (IMAGE)

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Immune System Cell Clones Created Before Birth May Last for Decades

Caption

Twins exchange T-cells in utero through shared placenta.

Credit

Kevin Dufendach (2008), retrieved from https://commons.wikimedia.org/wiki/File:Placentation.svg, CC BY, adapted and modified by M.V. Pogorelyy.

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