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. 2021 Sep 21;12(10):6431–6441. doi: 10.1364/BOE.436330

Fig. 3.

Fig. 3.

Dynamic motion analysis of single HeLa cell measured for 24 hours. Shows a pronounced dynamic change after 4 hours (red dash line). (a) The frequency spectrum of the cell. (b) Mean frequency of the cell frequency spectrum. (c) Magnitude of the dynamic movement of the cell.