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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.
More than 4.4billion prescriptions were dispensed within the United States in 2016.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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.