Changing etiologies and outcome of liver failure in Southwest China.

Virol J · 2016 · PMC4893219 · PMID 27260248

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showed a trendno p-value reported

The prognosis of liver failure is still poor, but the spontaneous survival rate showed a trend of steady rise in recent years.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.