Becker, M., Maring, J. A., Oberwallner, B., Kappler, B., Klein, O., Falk, V., Stamm, C. Processing of Human Cardiac Tissue Toward Extracellular Matrix Self-assembling Hydrogel for In Vitro and In Vivo Applications. J. Vis. Exp. (130), e56419, doi:10.3791/56419 (2017).