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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

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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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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Common locations of urinary calculi formation. Common locations of urinary calculi formation.
Common structural features of bacterial cells Common structural features of bacterial cells
Common skin signs are often evidence of an illness or disorder. A macule is a discolored spot on the ... Common skin signs are often evidence of an illness or disorder. A macule is a discolored spot on the ...
Common Fluoride Products Common Fluoride Products
Climate Zones Climate Zones
Early growth of the common bean (Phaseolus vulgaris), a typical eudicot. Early growth of the common bean (Phaseolus vulgaris), a typical eudicot.
Video: Cardiac conductile cells

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