Efficacy of preimplantation genetic testing for aneuploidy in improving pregnancy outcome among couples with azoospermia: study protocol for a multicenter, randomized controlled trial
Background Azoospermia affects up to one in ten infertile couples and represents one of the most challenging conditions in male infertility. Although the development of intracytoplasmic sperm injection (ICSI) enables azoospermic men to achieve biological parenthood, overall success rates remain modest. Preimplantation...