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Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.
The average adult has about 21 square feet of skin.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.