Postoperative deterioration in health related quality of life as predictor for survival in patients with glioblastoma: a prospective study.

PLoS One · 2011 · PMC3235141 · PMID 22174842

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did not reach statistical significanceno p-value reported

Preoperative KPS or surgical extent of resection did not reach statistical significance.

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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.