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. 2016 Dec 7;9:86. doi: 10.1186/s13048-016-0295-y

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© The Author(s). 2016

Open AccessThis 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. 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. 1 — Histopathological features of ovary in Letrozole induced PCOS in rats. Representative photographs of section of ovary showing various developing follicles, cystic follicle (c.f), atretic follicle (a.f) and corpus luteum (c.l): (a) Control group (b) PCOS group (c) Metformin group (d) Rutin-I (100 mg/kg) and (e) Rutin-II (150 mg/kg) (40× magnification)