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Quantitative analysis of the capillary areas in embryoid bodies treated with thalidomide (100 μg/ml), thalidomide in the presence of the hydroxyl radical scavengers mannitol (10 mmol/L) and 2-mercaptoethanol (300 μmol/L), and mannitol (10 mmol/L) and 2-mercaptoethanol (300 μmol/L) in the absence of thalidomide. Shown is representative of three independent experiments. Significance (P < 0.05) is indicated by an asterisk.
