Oocyte/zygote/embryo maturation arrest-18 (OZEMA18) is characterized by female infertility due to early embryonic arrest. Most oocytes can be fertilized and begin cleavage, but very few viable embryos are obtained and most fail to establish pregnancy (Mu et al., 2019).
For a discussion of genetic heterogeneity of OZEMA, see 615774. [from
OMIM]