Fig. 3From: Process development and safety evaluation of ABCB5+ limbal stem cells as advanced-therapy medicinal product to treat limbal stem cell deficiencyRelease tests of 13 GMP-conform produced limbal stem cell batches. A batch that failed the specification for batch release is colored in red. Please note that batches 9–13 could not be evaluated for PAX6+ cell content due to staining problems and were therefore not releasedBack to article page