Postoperative study of vital capacity and ventilation measurements following elective craniotomy.

Sao Paulo Med J · 2008 · PMC11020516 · PMID 18425281

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a clear trendno p-value reported

4 , 5 , 21 We found that, although VC and TV were still 8% and 6%, respectively, below preoperative values on the fourth postoperative day, there was a clear trend towards returning to these preoperative values.

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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.