The study looked at a new method called selective short-term fertilization for in vitro fertilization. They found that this method, combined with rescue sperm injection, can improve embryo quality and pregnancy outcomes for patients at risk of fertilization problems. The researchers compared different groups of patients and found that selective short-term fertilization led to better results in terms of fertilization rates and pregnancy outcomes compared to traditional methods. This suggests that selective short-term fertilization could be a helpful approach for patients facing fertilization challenges during assisted reproduction.