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. 2021 Apr 1;11(4):639. doi: 10.3390/diagnostics11040639

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Linear regression analyses for interlaboratory variations. Regression lines (black lines) show the correlation of dengue RNA from clinical samples measured by RT-ddPCR between two laboratories: (A) SI versus AFRIMS (AF), (B) BIOTEC (BIO) versus AFRIMS (AF), and (C) SI versus BIOTEC (BIO). The solid dots represent measured counts within the limit of quantification. The open dots represent measured counts below LLOQ or above ULOQ which were not included in the analysis. The diagonal line (blue dashed line) represents a hypothetical trend where results from the two laboratories are identical.