When is low quality really low? Should we transfer low-grade blastocysts?-MedSci.cn

When is low quality really low? Should we transfer low-grade blastocysts?

Hammond, E; Liu, Y; Xu, F; Liu, G; Xi, H; Xue, L; Bai, X; Liao, H; Xue, S; Zhao, S; Zhang, A; Kemper, J; Afnan, M; Mol, B; Morbeck, D