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. 2021 Jul 6:M21-0878. doi: 10.7326/M21-0878

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This article is made available via the PMC Open Access Subset for unrestricted re-use for research, analyses, and text and data mining through PubMed Central. Acknowledgement of the original source shall include a notice similar to the following: "© 2020 American College of Physicians. Some rights reserved. This work permits non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited." These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Figure 3. Symptoms of COVID-19, with the severity of each symptom in absolute numbers at 7 to 9 months from diagnosis. * Fatigue intensity is based on the Eastern Cooperative Oncology Group performance scale (17), and dyspnea intensity is based on the modified Medical Research Council scale (18). — * Fatigue intensity is based on the Eastern Cooperative Oncology Group performance scale (17), and dyspnea intensity is based on the modified Medical Research Council scale (18).