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. 2022 Oct 9;6:24705470221128004. doi: 10.1177/24705470221128004

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© The Author(s) 2022

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 2. — Records processing pipeline for systematic review of published proton magnetic resonance spectroscopy (¹H-MRS) investigations of post-traumatic stress disorder (PTSD). Initial records (N = 107) were located via designated search terms on PubMed based on Quadrelli et al⁴⁶ following which abstracts were screened for exclusion on the basis of not being a human ¹H-MRS case study of PTSD or comparative analysis with at least one healthy non-PTSD control. Remaining studies (N = 32) were cross-checked against an older systematic review⁴⁶ and meta-analysis⁴⁵ to confirm inclusion of all relevant studies in the present investigation. SARS: Severe Acute Respiratory Syndrome.