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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/).
Changes in the external [Ca2+] upon successive addition of small Ca2+ doses (10 μM) to the suspension of heart mitochondria of experimental animals (a). Ca2+ retention capacity of heart mitochondria of experimental animals (b). The values are given as means ± SEM (n = 5).