Stability of 21 Antihypertensive Drugs in Serum Collected in Standard (Nongel) Serum Tubes Versus Tubes Containing a Gel Separator.

Ther Drug Monit · 2020 · PMC7077963 · PMID 31609885

Europe PMC DOI

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closest p

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a weak trendno p-value reported

However, a weak trend toward a higher concentration difference between the gel and nongel tubes with smaller PSA, and higher logP, PB, and CF, may be inferred from the trend line slopes.

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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.