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In the latest issue of New Scientist Magazine, researchers in Japan said they had devised a "chip" measuring 2 mm across and 0.5 mm high, which they said simulates more closely the conditions of a natural womb.
Fresh IVF embryos are slipped into the chips, which rest on a membrane of cultured uterus cells. Once they are ready to attach themselves to the uterus wall, the eggs are reinserted into the mother's womb.