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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.