Valkova L, Andreeva P, Milachich T, Bandreva B, Penkova P, Bochev I, Petkova B, Timeva T, Shterev A. Determination of Optimal Number of Vitrified Human Autologous or Donor Oocytes Needed for One Live Birth. Probl Cryobiol Cryomed [Internet]. 2020Dec.14 [cited 2024Apr.18];30(4):384-8. Available from: http://journal.cryo.org.ua/index.php/probl-cryobiol-cryomed/article/view/1695