Lab-grown liver raises hopes but draws criticism

Though human cells spontaneously group into rudimentary organs, some scientists say work is very preliminary

LAB LIVER  Lab-made liver cells and umbilical cord cells clustered together in a dish to form three-dimensional liver buds (white dots), a new study reports. However, some scientists question the extent to which the new results advance liver regeneration efforts.

T. Takebe 

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A tiny cluster of lab-grown human cells that sprouts into liver tissue could one day nix the need for organ donors.