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Author Question: In observational studies, the researcher never participates with the subjects being observed. ... (Read 38 times) |
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
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There are 60,000 miles of blood vessels in every adult human.
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.