Fig. (6) C- and B-scans of dividing HeLa cells: (A) C-scan of HeLa cells taken at a defocus of z = 10 µm; (B) B-scan of HeLa cell (ii) from panel “A”; (C) B-scan of HeLa cell (iv) from panel “A”. The scale bars in all panels correspond to 15 µm (Figure from Zinin, Anastasiadis et al. ^© 2007 IEEE).