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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

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Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

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All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

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There are approximately 3 million unintended pregnancies in the United States each year.

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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i
Ovaries, uterine tubes, and uterus. Ovaries, uterine tubes, and uterus.
Estrogen and Progesterone Levels During Menstrual Cycle Estrogen and Progesterone Levels During Menstrual Cycle
Estrogen versus testosterone in Males as they Age Estrogen versus testosterone in Males as they Age
Endocrine Organs and the Hormones They Secrete (2 of 2) Endocrine Organs and the Hormones They Secrete (2 of 2)
Binding of the estrogen receptor to DNA, as inferred from solution NMR spectroscopy Binding of the estrogen receptor to DNA, as inferred from solution NMR spectroscopy
Video: Medullary osmotic gradient: countercurrent multiplier, urea recycling & vasa recta countercurrent exchange

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