The average adult has about 21 square feet of skin.
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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.
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Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.
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The longest a person has survived after a heart transplant is 24 years.
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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
A classification system for living and extinct organisms.
The Sun is the star at the center of the Solar System.
Tooth Numbering System
Paranasal sinuses are part of the upper respiratory system.