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Nanograms per milliliter per hour (ng/mL/hr)

Some medical tests report results in nanograms per milliliter per hour.

A nanogram is one-billionth of a gram. A gram is about 1/30 of an ounce.
A milliliter measures fluid volume equal to 1/1000 liter. A liter is a little bigger than a quart.
An hour is the time period that the amount of nanograms per milliliter is measured for.

Nanograms per milliliter per hour (ng/mL/hr)

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