"Stage embryos" refers to the early development of an organism, particularly referring to a specific period or phase in their growth and formation. Full definition
The team found the most influential factors included the number of cells that developed into early stage embryos, the thickness of the womb lining, and body mass index. (newscientist.com)
The egg then grew into an early - stage embryo whose stem cells, a genetic copy of the original, were then harvested. (faith.org.uk)
With our Two Blastocyst Embryo Guarantee Program, for roughly half the cost of fresh donor eggs, patients receive two cryopreserved blastocyst stage embryos for a plan fee of $ 19,615. (pacificfertilityeggbank.com)