Scientific challenge 1

Thanks to the authors of this scientific challenge to share their protocols. I would like to raise two questions for discussion:

1. Do we currently have enough published or ongoing comparative studies to support the choice of one cryoprotectant over another in ovarian tissue cryopreservation?
2. While preserving follicle integrity is clearly a primary goal, how important is stromal preservation for the success of transplantation in terms of graft revascularization and longevity? Is there any clinical or experimental evidence supporting its role?