Formalin fixation on HER-2 and PD-L1 expression in gastric cancer: A pilot analysis using the same surgical specimens with different fixation times.

World J Clin Cases · 2019 · PMC6397813 · PMID 30842953

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difference was apparentno p-value reported

Although we also observed no significant difference between 10% formalin and 10% NBF within 1 wk of fixation in our assessment of PD-L1 expression, a significant difference was apparent in the long-term fixation, and the superiority of 10% NBF was reconfirmed.

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