In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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Medication errors are more common among seriously ill patients than with those with minor conditions.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
Multiple crossovers can include more than two chromatids
Some common eye disorders. (B) Cataract of right eye. (C) Stye.
The brain, spinal cord, and spinal nerves. An expanded view of the spinal cord is shown.
How to verify that the center of a circle lies on the right bisector a cord