Details Image Contributors Hojilla, C. Lists containing this slide C4 Cite Hojilla, C. C4 S100. Digital Laboratory Medicine Library, Dept of Laboratory Medicine & Pathobiology, University of Toronto. Published July 19, 2021 . Accessed December 17, 2025. https://dev.dlml.cflabs.ca/image/c4-s100-lmp24341-u