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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

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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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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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Approximately 500,000 babies are born each year in the United States to teenage mothers.

The Racker and Stoeckenius experiment showing that an H+ electrochemical gradient drives ATP synthes The Racker and Stoeckenius experiment showing that an H+ electrochemical gradient drives ATP synthes
Cyanobacteria of the (a) genus Synechococcus form (b) mats that line hot springs around the world. Cyanobacteria of the (a) genus Synechococcus form (b) mats that line hot springs around the world.
A participant in a sleep experiment. A participant in a sleep experiment.
Schematic illustration of Myers and Sperry’s (1953) groundbreaking split-brain experiment. There ... Schematic illustration of Myers and Sperry’s (1953) groundbreaking split-brain experiment. There ...
The transfer experiment that demonstrated the existence of RNA primers in DNA replication The transfer experiment that demonstrated the existence of RNA primers in DNA replication
Frederick Griffith’s experiment identifying a ″transformation factor″ responsible for heredity Frederick Griffith’s experiment identifying a ″transformation factor″ responsible for heredity
Video: Types of disease resistance: innate defenses & immunity

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