Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
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The longest a person has survived after a heart transplant is 24 years.
A typical lubrication system, showing the oil pan, oil pump, oil filter, and oil passages.
Connections of a nitric acid plant, intermediate pressure type
Typical Night’s Sleep for a Young Adult
Internal Anatomy of the Spinal Cord
Chloroplast segregation determined by mating type in Chlamydomonas