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<em>Cardiac muscles are found only in the heart. They regulate the contraction and relaxation of the heart, which helps in pumping blood through the circulatory system. The movements of the cardiac muscles are involuntary. They are important in sustaining life.</em>
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A longitudinal analysis of US adolescents22 estimated that a 10% increase in the proportion of classmates who smoke will increase the likelihood of smoking by more than 3%, while an increase in smoking rates of 10% among an individual's close friends will increase the likelihood of smoking by 5%.
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There are 3 main research types in psychology
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Some of the healthcare policy issues debated throughout the United States' history have ... Title XVIII established Medicare, which provided public health coverage to ... The task force created a 1,342-page bill, which President Clinton unveiled
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