Images of research achievements (IMAGE) National Research Council of Science & Technology Caption Schematic illustration of micro/macropore-forming hydrogel with NK cells fabricated by 3D bioprinting and implanted into the tumor site Credit Korea Institute of Machinery and Materials (KIMM) Usage Restrictions The sources of photos and research results from KIMM must be specified. 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.