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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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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

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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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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Copepods, from Ernst Haeckel's 1904 work Kunstformen der Natur Copepods, from Ernst Haeckel's 1904 work Kunstformen der Natur
reactions of an ester with a carboxylate group to form an anhydride. The R group is the same in each reactions of an ester with a carboxylate group to form an anhydride. The R group is the same in each
Parenting Styles Parenting Styles
A patient examination room should be simple and efficiently designed. A patient examination room should be simple and efficiently designed.
Turning Play into Work Turning Play into Work
Married or partnered couples within a visible minority mixed group Married or partnered couples within a visible minority mixed group
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