Reproductive scientists across the globe have been discussing the news that a group from Japan has just reported the first human birth from previously vitrified ovarian tissue.  The article, published in the journal Proceedings of the National Academy of Sciences (PNAS), describes the research by Kawamuraa, Cheng, Suzuki, Deguchi, Sato, Takae, Ho, Kawamura, Tamura, Hashimoto, Sugishita, Morimoto, Hosoi, Yoshioka, Ishizuka, and Hsueh. Read more about the research on the Oncofertility Blog.