Neonatal Mouse Heart (IMAGE) Children's Hospital Los Angeles Caption This is a neonatal mouse heart showing basal level of proliferating cardiomyocytes. (Red- cardiomyocytes; Green- proliferating cardiomyocytes; RV-right ventricle; LV-left ventricle.) Credit The Saban Research Institute of Children's Hospital Los Angeles Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.