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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 horizontal fraction bar was introduced by the Arabs.

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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Wild chimpanzees make and use simple tools to obtain food, learning tool making from one another. Wild chimpanzees make and use simple tools to obtain food, learning tool making from one another.
Password Guidelines Password Guidelines
Blood Pressure Guidelines Blood Pressure Guidelines
This debutante is making her formal entrance into society, announcing her eligibility for marriage. ... This debutante is making her formal entrance into society, announcing her eligibility for marriage. ...
The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ... The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ...
Selected Broad Sense Heritability (H2) Values from Human Twin Studies Selected Broad Sense Heritability (H2) Values from Human Twin Studies
Video: Elementary kinetics

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