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Histopathological characteristics of mutation sites (original magnification ×200). (A) HE staining of myocardial tissue with Thr446Pro mutation. (B) HE staining of myocardial tissue with Phe468Leu mutation. (C) HE staining of normal myocardium. (D) Masson staining of myocardial tissue with Thr446Pro mutation. (E) Masson staining of myocardial tissue with Phe468Leu mutation. (F) Masson staining of normal myocardium. HE: Hematoxylin and eosin.
