Supplemental Video 3 (VIDEO) City of Hope This video is under embargo. Please login to access this video. Caption 3-D image of human beta cell mass treated for three months with harmine plus exendin-4. Credit City of Hope/Mount Sinai Health System Usage Restrictions With credit to the original source License Original 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.