| 1. | The kid chipped in with a horrifying 17.8 nanograms.
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| 2. | Cotton said the sample contained only about 25 nanograms of DNA.
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| 3. | Walke's sample showed 34.9 nanograms per milliliter.
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| 4. | The production rate per year is only 1 to 10 nanograms.
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| 5. | Results under 4 nanograms per milliliter are usually considered normal.
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| 6. | The PSA test was a normal 3.24 nanograms per milliliter.
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| 7. | Its concentration is always less than 5 nanograms per liter.
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| 8. | We're talking chromosomes, nanograms, cytoplasm.
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| 9. | His new PSA level was a normal 3.4 nanograms per milliliter.
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| 10. | 17.8 nanograms per milliliter, Carrard said.
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