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Author Question: When subtypes are overlapping, an additional field must be added to the supertype to act as a ... (Read 48 times) |
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Vaccines prevent between 2.5 and 4 million deaths every year.
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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.