3-D Cell (IMAGE) Johns Hopkins University Caption This is a reflection confocal micrograph of collagen fibers of a 3-D matrix with cancer cells embedded. Credit Stephanie Fraley/JHU 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.