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IIF of IHCK for ABCG2 (A, C, E; green) and Ki-67 (B, D, F; green). IHCK are cocultured in holistic mode for 5 days (A, B), 6 days (C, D), and for 9 days (E, F). Cell nuclei are counterstained by DAPI (blue). For better visibility of Ki-67-positive cells, cell counterstain is shifted to the respective inlays. Scale bars represent 50 μm. Color images available online at www.liebertpub.com/tec
