Effect of Hyaluronan-enriched Medium on the Cumulative Ongoing Pregnancy Rate.

Inclusion Criteria7

• Patients with own oocytes/embryos;
• Patients with female age at 1st OR in the study \<40 year;
• Patients planned for a 2nd oocyte retrieval, with no clinical ongoing pregnancy after the previous oocyte retrieval
• Patients planned for a 3rd oocyte retrieval with no clinical ongoing pregnancy after previous oocyte retrievals
• Patients with female age at 1st OR in the study \<40 year;
• Patients with BMI ≤32;
• Patients with written informed consent;