Scientists have grown “mini placentas,” a development that could transform research into the underlying causes of miscarriage, stillbirth, and other pregnancy disorders. The mini placentas are so much like the real thing they can fool over-the-counter pregnancy tests.

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Scientists have grown “mini placentas,” a development that could transform research into the underlying causes of miscarriage, stillbirth, and other pregnancy disorders. The mini placentas are so much like the real thing they can fool over-the-counter pregnancy tests.