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A) Relative changes in de-oxyhemoglobin (blue), oxyhemoglobin (red), and cytochrome oxidation state (black) for rats after initiation of hypoxia. Median data are presented in bold. B) Relative changes in de-oxyhemoglobin (blue), oxyhemoglobin (red), and cytochrome oxidation state (black) for rats after injection of 5 mg/kg IV NaCN. Median data are presented in bold.
