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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Immunofluorescence staining images of the mono-cultured cancer microtissue (a–c) and fibroblast-layered microtissue (d–f). Change in diameter of cancer microtissues with time (g). Blue, cell nucleus; green, F-actin staining. All experimental samples were n > 3. (* p < 0.01).