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An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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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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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Pacific hagfish at 150 meters depth, California, Cordell Bank National Marine Sanctuary. Pacific hagfish at 150 meters depth, California, Cordell Bank National Marine Sanctuary.
Chimpanzees in the Gombe National Park, Tanzania groom each other by holding an overhead branch with Chimpanzees in the Gombe National Park, Tanzania groom each other by holding an overhead branch with
Should we restore YellowstoneNationalPark, as our flagship National Park, to include the natural ... Should we restore YellowstoneNationalPark, as our flagship National Park, to include the natural ...
Step 3 in the diagnostic process is to retrieve any stored diagnostic trouble codes. Step 3 in the diagnostic process is to retrieve any stored diagnostic trouble codes.
National Patient Safety Goals for Acute-Care Hospitals National Patient Safety Goals for Acute-Care Hospitals
Video: Methods that regulate pH

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