More than 4.4billion prescriptions were dispensed within the United States in 2016.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
Bronchoscopy.
Tar deposits in the lung
Nursing history for lung assessment
Normal lung volumes and capacities.
Aspergillosis fungal ball in the right lung.
A land snail (Helix aspersa) with the opening that leads to its lung visible at the left.