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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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According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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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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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.
Overview of gas exchange between the environment, blood, and cells.
China's proposed supercollider plans to be twice the size of the Large Hadron Co
Preparing a Urine Specimen for Microscopic Examination (for Classroom Evaluation Only)
Testing Infants’ Knowledge
Grade 11 Chemistry