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. 2023 Feb 27;17:17534666231155747. doi: 10.1177/17534666231155747

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© The Author(s), 2023

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 3. — Receiver operating characteristic curve for pleural fluid LDH/ADA ratio to distinguish patients with PPE from TPE. Receiver operating characteristic curves showing the performances of the pleural fluid LDH/ADA ratio as the indicator for PPE differentiation from TPE in cohort 1 (a), cohort 2 (b), cohort 3 (c), and all subjects (d). ADA, adenosine deaminase; LDH, lactate dehydrogenase; PPE, parapneumonic effusion; TPE, tuberculous pleural effusion.