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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.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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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.
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There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).
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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
Cell culture in a Petri dish
A single base substitution leading to a single amino acid substitution in the hemoglobin beta chain
Each cell nucleus throughout the body contains the genes, DNA, and chromosomes that make up the ...
Structure of a typical cell membrane
Events of the Somatic Cell Cycle
A nerve cell (neuron) has extensions called dendrites