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. 2021 Jun 10;39(6):411–417. doi: 10.1089/photob.2020.4957

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© Brendan Quirk, et al., 2021; Published by Mary Ann Liebert, Inc.

This Open Access article is distributed under the terms of the Creative Commons Attribution Noncommercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.

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FIG. 2. — Confocal microscope fluorescence imaging. Scale bar = 50 μm. (a) Tumor tissue treated with microneedling and ALA. (b) Tumor tissue treated with microneedling and vehicle only. ALA, aminolevulinic acid.