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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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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Bile Infarct Bile Infarct
Cereal production in Africa may decrease by as much as 50% by 2080 in some areas Cereal production in Africa may decrease by as much as 50% by 2080 in some areas
Electricity production accounts for 25% of greenhouse gas emissions Electricity production accounts for 25% of greenhouse gas emissions
From Cells to Organs and Organ Systems From Cells to Organs and Organ Systems
Complete the following production chart and plot the points. Complete the following production chart and plot the points.
Organ System Interactions Organ System Interactions
Video: Carpal Tunnel Syndrome

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