Comparison of pregnancy outcomes in single vitrified-warmed blastocyst transfers on day 5 versus day 6, without preimplantation genetic testing. RSD [Internet]. 2025 Jun. 18 [cited 2025 Jun. 28];14(6):e6414649005. Available from: https://ojs34.rsdjournal.org/index.php/rsd/article/view/49005