161123-regrow-arm-3
Lab-grown human muscle bundles, seen under a microscope. IMAGE: Nenad Bursac/Duke University (CC BY NC)
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full (620x380) | thumbnail (150x150) | medium (300x184) | medium_large (620x380) | large (620x380) Lab-grown human muscle bundles, seen under a microscope. IMAGE: Nenad Bursac/Duke University (CC BY NC)
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