Merkel Cell Deficiency (IMAGE) Rockefeller University Press Caption After six months, whisker follicles in adult mice lacking Atoh1-expressing progenitor skin cells (left) have a deficiency of Merkel cells (green) compared with a control group (right). Credit Wright et al., 2015 Usage Restrictions Reporters may freely use these materials in news coverage, with the appropriate credit information. 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.