Pitko, V.A., Shcherbakov, A.Y., Lohinova O.О., Sinilo N.М., Kuchkov, V.M., Cherkashyna, Y.O. and Pavlov, I.V. 2019. Embryo culture in step single and sequential media: influence on morphology and implantation potential of blastocysts. Zaporozhye мedical journal. 5 (Oct. 2019). DOI:https://doi.org/10.14739/2310-1210.2019.5.179426.