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By definition, when a medication is administered intravenously, its bioavailability is 100%.
Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.