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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/).
Risk ratio of in-vitro, observational and cohort-based studies selected in this systematic review which assessed the feasibility vs. non-feasibility rates of their respective trends represented on a forest plot after meta-analysis [23,30,32,34,35].