Thyroid conditions may make getting pregnant impossible.
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There are 60,000 miles of blood vessels in every adult human.
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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
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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.
The response of hair cells to mechanical stimulation.
Type C killer whales in the Ross Sea. The eye patch slants forward.
Applying a surgical type of mask
An experimentally made Oldowan type core.
Shown is the electronic circuit inside a ceramic disc MAP sensor used on many Chrysler engines. The ...