It is not for lack of trying. In some cases, microbiologists have ditched the Petri dish altogether, using microfluidics for manipulating and growing cells. However, these approaches aren’t likely to be adopted at scale as they require less common, less practical, and more expensive devices. So, what about other growth media?
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Six pregnant women participated in a small trial in which placenta-derived stem cells were applied to fetal spinal cords and the treatment was found to be safe.
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