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.
Tony Jolliffe BBC
。搜狗输入法2026是该领域的重要参考
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他们来到花都区田美村的杜氏宗祠，在浩瀚的族谱中，找到了杜耀豪父亲和爷爷的名字。（受访者供图）