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. 2020 Oct 29;8(10):2325967120954392. doi: 10.1177/2325967120954392

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© The Author(s) 2020

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

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Figure 1. — Flow of patients. The flowchart shows the follow-up data of all patients allocated to a treatment group. The number of missing patients refers to the patients who were missing for a specific follow-up time point. These patients continued participating in the remaining follow-up time points. Patients who dropped out from the trial were referred to as “loss to follow-up.” Data of patients screened for eligibility were not available.