Cohort Study Investigating the Association Between Antichlamydial Antibody Positivity and ART Outcomes in Women With TFI

Inclusion Criteria: * Tubal factor infertility diagnosed by laparoscopy; * Female age between 20-41 years; * BMI 17,5-35 kg/m2; * Early follicular phase follicle stimulating hormone (FSH) ≤15 IU/L * Presence of viable spermatozoa in partner's sperm; * Signed informed consent. Exclusion Criteria: * previous ovarian surgery; * endometriosis; * antimullerian hormone (AMH) level ≤0,3 ng/ml; * hyper- or hypogonadotropic ovarian failure; * severe male factor infertility; * Pre-existing medical condition preventing or interfering with IVF treatment: any clinically significant systemic disease; inherited or acquires thrombophilia and thromboembolism; endocrine or metabolic abnormalities; moderate or severe impairment of renal or hepatic function; any oncological diseases in anamnesis; known history of recurrent miscarriage, abnormal karyotype of both partners; currently active pelvic inflammatory disease; * Abnormal IVF screening tests: Papanicolaou (PAP) smear, Syphilis, HIV 1\&2, Hepatitis B, Hepatitis C, Chlamydia, and Gonorrhea; * Presence of uterine pathology: Asherman's Syndrome, endometrial polyps, nodus form of adenomyosis or uterine fibroids ≥3 mm in diameter; * Visualization of ovarian cysts ≥25 mm, endometriomas or hydrosalpinx; * One or more follicles ≥8 mm at the start of the COS protocol.