The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.
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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
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Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
A Double-Line Spectroscopic Binary
Rules for Forming Plurals Medical Terms (NOUNS)
Drug Classification and Description of Use
How People Match Their Goals to Their Means
How prefixes and suffixes can be combined with a word root to form many medical terms.
How to evaluate algebraic expressions with given terms