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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.