| 41. | Neufeld noted that Cellmark's own protocol manual suggests 50 nanograms are required to obtain a usable result.
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| 42. | Cotton acknowledged that but said she believed a result could be obtained from 25 nanograms or even slightly less.
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| 43. | One nanogram per milligram is at the high end of an acceptable level of arsenic, the experts said.
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| 44. | Doctors generally recommend further testing if men's PSA levels rise above 4 nanograms per milliliter of blood.
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| 45. | Very small amounts of this compound, on the order of nanograms, can be responsible for this defect.
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| 46. | In theory, GC-MS instruments can detect substances whose concentrations are in the nanogram ( ) range.
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| 47. | The toxicology report found the levels to be 1.5 nanograms / ml of cannabis has been smoked.
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| 48. | The total concentration of diphenhydramine in Fishing Creek ranged from approximately 2 to less than 40 nanograms per liter.
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| 49. | The second part turned up more signs of marijuana use _ 17.8 nanograms per milliliter, Carrard said.
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| 50. | On November 30, 1998, the standard cutoff was increased to 2000 nanograms ( two micrograms ) per milliliter.
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