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. 2015 Jul 22;32(6):413–420. doi: 10.1007/s10719-015-9605-7

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© The Author(s) 2015

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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.

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Fig. 7 — Effects of cytidine in combination with 3′-SL on melanocyte-keratinocyte interactions and melanosome transfer. Cells were incubated 72 h with cytidine + 3′-SL, fixed in paraformaldehyde, stained for melanin with the Fontana-Masson silver stain. Images were photographed at magnification 63× and arranged into treatment groups with Photoshop tools. The images were enhanced together in the same layer with Photoshop automatic contrast and brightening tools. a. Untreated control. b. Cytidine (15 μM) + 3′-SL (15 μM)