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Lindheim, S.R., Sauer, M.V. Trophoblast Persists Despite Lack of Sex-Steroid Support Following Ovum Donation. J Assist Reprod Genet 16, 52–54 (1999). https://doi.org/10.1023/A:1022501830531
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DOI: https://doi.org/10.1023/A:1022501830531