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. 2019 Dec 15;22(3):367–374. doi: 10.22074/cellj.2020.6717

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The Cell Journal (Yakhteh) is an open access journal which means the articles are freely available online for any individual author to download and use the providing address. The journal is licensed under a Creative Commons Attribution-Non Commercial 3.0 Unported License which allows the author(s) to hold the copyright without restrictions that is permitting unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig 1 — Developmental stages used for morphokinetic analyses using time-lapse monitoring compared between twin A and twin B. 9+; More than nine blastomeres, Mor; Morula or fully compacted embryo, SB; Start of blastulation, BL; Blastocyst, and EBL; Expanded blastocyst.