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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
![Magnetic resonance imaging (MRI). The MRI lab includes the scanning instrument and a computer statio](https://biology-forums.com/gallery/47/medium_14755_14_10_12_6_49_35_9415513.jpeg)
![Obstetrical sonography and fetometry. (a) The procedure is performed in a clinical setting. The inst](https://biology-forums.com/gallery/47/medium_14755_16_10_12_12_30_00_94542138.jpeg)