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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

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All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

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Approximately 25% of all reported medication errors result from some kind of name confusion.

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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Total fertility rates (TFRs) among major regions of the world. Total fertility rates (TFRs) among major regions of the world.
Distribution of the African great apes. Distribution of the African great apes.
Distribution of Neandertal sites in Europe and western Asia. Distribution of Neandertal sites in Europe and western Asia.
Far Oceania was the last of the regions of the world to be colonized by humans. Far Oceania was the last of the regions of the world to be colonized by humans.
What's the Difference Between England, Great Britain, and United Kingdom? What's the Difference Between England, Great Britain, and United Kingdom?
Video: Types of Shock (Part 2 of 2)

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