Regenerative therapies for equine degenerative joint disease: a preliminary study.

PLoS One · 2014 · PMC3896436 · PMID 24465787

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a positive trendno p-value reported

Severity scores were translated to evolution scores for easier interpretation of the data and a positive trend would therefore indicate a clinical improvement.

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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.