More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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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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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.
Gastrointestinal system
lymphatic system
Procedures and Diagnostic Tests Related to the Integumentary System
Procedures and Diagnostic Tests Related to the Female Reproductive System