M. Mahtemsilassie, M. Wondafrash, M. Negash, and M. . Ansa, “Biochemical Pregnancy Outcomes among Day 3 Vs 5 Embryotransfer in the Fertility Reproductive Mecicine Center at Teritary Hospital, Addis Ababa, Ethiopia”, EJRH, vol. 15, no. 2, May 2023.