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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/).
SEM micrographs of specimens exposed to different iron salts in saline: (a) control group, (b) ferrous sulfate group, (c) ferrous ammonium citrate group, (d) ferrous fumarate group, (e) ferrous gluconate group.