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. 2021 May 24;7:38. doi: 10.1038/s41378-021-00267-w

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 6 — a Schematic diagram of the analytical platform capable of simultaneously acquiring bright-field images and fluorescence signals. b The viability measured from individual spheroids under treatment with vinorelbine at titrated concentrations, where the IC50 value was determined to be ~3 μM, as marked by the gray dashed lines. c Morphological observations of identical spheroids before vinorelbine treatment and d after treatment with vinorelbine (20 μM) for 3 days. Data are plotted as the mean ± SD (n = 3 independent experiments). Scale bars: 50 μm.