PETROVA, N.; HRISTOVA, E.; HRISTOVA, M.; TODOROV, P. Investigating the Relationship between the Day of Embryo Freezing and Pregnancy Rates. Proceedings of the Bulgarian Academy of Sciences, Sofia, Bulgaria, v. 75, n. 12, p. 1749–1756, 2022. DOI: 10.7546/CRABS.2022.12.06. Disponível em: https://proceedings.bas.bg/index.php/cr/article/view/214. Acesso em: 9 feb. 2023.