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. 2015 Jun 25;13:67. doi: 10.1186/s12958-015-0065-5

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© Sanfilippo et al. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — DNA fragmentation in follicles. Histograms presenting proportion of TUNEL-positive follicles (left panel) and stroma cells per high power field before (white plots) and after cryopreservation using vitrification (black hatched plots) versus slow freezing methods (black plots) (n = 5 patients). Pairwise comparisons between unfrozen, vitrification and slow-freezing groups were performed using a Tukey-Kramer test. ^a,b No difference among the three groups (^a p > 0.05, ^b p > 0.05)