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.
What is a planetary parade?
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20:25, 27 февраля 2026Ценности
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用
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