Fig. 4From: Vitrification for cryopreservation of 2D and 3D stem cells culture using high concentration of cryoprotective agentsQuantitative real-time polymerase chain reaction (RT-PCR) analysis for apoptosis, oxidative stress, and heat shock damage after rewarming at single cell level (a) and spheroids (b). (n ≥ 3). **p < 0.01 relative to the vitrified groupBack to article page