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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.