Considering the advent of mesenchymal stem cells (MSCs) as a new source of somatic cells in embryo co-culture system. the current study was aimed to compare in vitro embryo development using embryonic MSCs monolayer with embryonic fibroblast cells (EFCs). oviductal epithelial cells (OECs). and cell-free culture system. https://www.alarecre.com/NHL-Dallas-Stars-Black-Background-iPhone-13-Pro-Max-MagSafe-Case-p96318/