wikipedia.org wikipedia.org Hibernating myocardium Hibernating myocardium myocardium Hibernating myocardium wikipedia.org Wikipedia article "Hibernating myocardium" Hibernating myocardium wikipedia.org Hibernating myocardium Hibernating myocardium myocardium myocardium Hibernating myocardium myocardium myocardium Hibernating myocardium myocardium Hibernating myocardium