Is day 7 culture necessary for in vitro fertilization of cryopreserved/warmed human oocytes?
Abstract Background Human embryos are usually cultured to blastocyst stage by Day 5 or 6 after insemination. However, some embryos grow slowly and reach blastocyst stage at Day 7. Acceptable live birth rates have been reported after transfer of Day 7 blastocysts resulted from fresh oocyte in vitro f...
Main Authors: | Xiangli Niu, Cassie T. Wang, Richard Li, Ghassan Haddad, Weihua Wang |
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Format: | Article |
Language: | English |
Published: |
BMC
2020-01-01
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Series: | Reproductive Biology and Endocrinology |
Subjects: | |
Online Access: | https://doi.org/10.1186/s12958-020-0565-9 |
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