Randomized, clinical trial on diathermy and scalpel incisions in elective general surgery.

Iran Red Crescent Med J · 2015 · PMC4376978 · PMID 25834739

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an increasing trendno p-value reported

After the introduction of oscillator units, which produce pure sinusoidal current, there has been an increasing trend in the use of diathermy for making skin incisions.

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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.