Ovarian tissue preservation, storage and transplantation has been performed for more than 20 years in patients at risk of losing their fertility due to cancer or a benign disease. There have been many medical scientific publications about this technology to preserve fertility in these patients. The technology is the same for both fertility preservation and the use of this approach to prolong menopause. Given the success in fertility preservation, We believe we are now in a position to offer an opportunity to delay menopause.