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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.
On average, the stomach produces 2 L of hydrochloric acid per day.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Medication errors are three times higher among children and infants than with adults.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.