Dr. Ulyana Dorofeyeva is Renowned expert in ART, specializing in cutting-edge fertility treatments such as mitochondrial donation. Covers various aspects of ovarian stimulation, effective treatment for low responders, evaluation and management cycles of oocyte donors, embryo transfers, reproductive endocrinology, and surrogacy.Holds a patent for a utility model titled "Method of folliculogenesis activation for women at advanced reproductive age" since 25.08.2020. PhD completed in 2023 for "Optimization of approaches to preparing patients of advanced maternal age to obtain high-quality mature oocytes."Pioneered cross-border collaboration between Ukraine & Ireland in egg donation and surrogacy.