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This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
Transfections: (A) overexpression (OE) miR-421 in normal cardiomyocytes. (B) siRNA knockdown (KD) of miR-421 in primary cell cultures derived from the RV of infants with TOF. * significant change relative to starting level.