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. 2021 Jun 23;12:676262. doi: 10.3389/fgene.2021.676262

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Copyright © 2021 Piedade, Spencer, Persani and Nelson.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Luteinized follicle containing a structure suggestive of an ovum undergoing degeneration (hematoxylin and eosin stain; magnification, ×150). (B) Higher magnification of the putative ovum (hematoxylin and eosin stain; magnification, ×250). (C) Higher magnification of the same follicle showing luteinized cells characterized by their larger size, abundant eosinophilic cytoplasm, and prominent nucleus (hematoxylin and eosin stain; magnification, ×250).