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Microgram
A unit of mass equal to one millionth of a gram.
Milligram
A mass measurement in the metric system equivalent to 0.001 grams.
Microgram
A metric measure of mass that is one thousandth of a milligram or one millionth of a gram, used for very small amounts of a substance.
Milligram
A unit of mass equal to one thousandth of a gram, often used in medication dosages and nutritional information.
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