Elderly people with frailty, which affects up to one-quarter of over-50s, increased their endurance after a single dose of stem cells.
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「解放軍正陷入混亂，」亞洲協會政策研究所的萊爾·莫里斯（Lyle Morris）告訴BBC，僅剩習近平和一名軍委委員的情況是史無前例的。
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"Again this year the sea ice hasn't been too bad, but I can only see a handful of penguins really," he says.