Impact of Helicopter Emergency Medical Service in Traumatized Patients: Which Patient Benefits Most?

PLoS One · 2016 · PMC4714808 · PMID 26771462

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might be significantno p-value reported

It has been suggested that the considerable heterogeneity of study populations and study methodologies in the current literature might be significant reasons for this diversity of study results [ 7 ].

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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.