Patients who are admitted to the Reproductive Endocrinology and Infertility (REI) Department with certain complaints, including but not limited to the inability to get pregnant despite a lack of contraception or inability to get pregnant despite multiple in vitro fertilization attempts. Other reasons for admittance include recurrent miscarriages, failure of embryo implantation, lack or absence of eggs/sperm, polycystic ovary syndrome, varicocele, erectile dysfunction or retrograde ejaculation, vaginismus, hereditary genetic disorders, uterine malformation, and intrauterine adhesions.