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Author Question: A study is internally valid if: A) Alternative explanations of the results can be ruled out B) ... (Read 51 times) |
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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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.
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.