Yunakova, Maria, Sergei Slavov, Constantsa Neykova, Atanas Shterev, and Ivan Kostov. 2024. “Role of Age As a Major Determinant of Assisted Reproductive Technologies Outcome”. Proceedings of the Bulgarian Academy of Sciences 77 (5). Sofia, Bulgaria:753–759. https://doi.org/10.7546/CRABS.2024.05.13.