Did you know?
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.
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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.
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Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.
A partially submerged alligator displaying a typical ambush position
A typical reception area in a medical office.
A typical pedestal grinder with a wire wheel on the left side and a stone wheel on the right side. ...
A typical intertidal zone
Early growth of the common bean (Phaseolus vulgaris), a typical eudicot.