Experimental investigations of a manually versus an electrically driven skull drill for bedside usage.

PLoS One · 2019 · PMC6472766 · PMID 30998712

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hedged sentence

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closest p

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a clear trendno p-value reported

Angle deviation xz and yz There are different observations concerning the angle deviation but a clear trend is difficult to determine.

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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.