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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Cyanide works by making the human body unable to use oxygen.
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.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
The familiar sounds of your heart are made by the heart's valves as they open and close.