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Author Question: As a group, U.S. consumers view hamburger as a normal good at low income levels and as an inferior ... (Read 29 times) |
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.