HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.
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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
The direction of plant cell expansion is controlled by microfibrils and microtubules. Plant cells en
Coleman's parabiosis experiments revealed a satiety factor in wild-type mice that was absent or
Cell-fie
Naive B Cell
A dendritic cell preparing to engulf spores of a fungus, Aspergillus fumigatus.