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Nitric oxide improved collagen content. Total collagen content of healing Achilles tendons at day 10 in rats treated with vehicle, paracetamol, or nitric oxide (NO)-paracetamol is shown. Values are mean ± standard deviation, n = 11, 11, and 12 for vehicle, paracetamol, and NO-paracetamol. Statistical analysis was performed using unpaired two-tailed Student’s t-tests.
