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A, 17.5-kDa (gray) and 22-kDa (black) GH1 transcript levels as measured by relative real-time PCR analysis. B, The relative transcript ratios of 17.5-kDa/22-kDa in four different CEPH CL cell lines derived from normal individuals. Each sample was done in triplicate, and analysis was repeated three times. Error bars represent sem.
