Fig. 7From: Successful fertility following optimized perfusion and cryopreservation of whole ovary and allotransplantation in a premature ovarian insufficiency rat modelThe optimized perfusion apparatus. a Illustration of the perfusion apparatus. Arrow 1 and arrow 2 were pulse control pumps. Arrows 3, 4, and 5 were containers. b The increasing mode of optimized perfusion. The concentration of dimethyl sulphoxide was increased from 0 M to 1.5 M at the beginning of 15 min and was maintained at 1.5 M for the last 5 minBack to article page