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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.