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Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

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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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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Migration of naive and effector T lymphocytes Migration of naive and effector T lymphocytes
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Hurricane Destruction Hurricane Destruction
The Production of Cytotoxic T-lymphocytes (CTLs) The Production of Cytotoxic T-lymphocytes (CTLs)
Plasmodium parasites (arrow) attacking and infecting red blood cells. Infection by Plasmodium causes Plasmodium parasites (arrow) attacking and infecting red blood cells. Infection by Plasmodium causes
Lymphocytes Migrating through Membranes Lymphocytes Migrating through Membranes
Video: Glomerular filtrate rate: pressures that affect GFR, NFP & GFR and blood composition

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