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Biology, 18.12.2019 22:31 michaelishawilliams
Suppose after a high-smog alert day in your city, a 5-year-old child with asthma, a 50-year-old male smoker with emphysema, and a 75-year-old of average health all come to the emergency room complaining of a cough and chest pain.
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Suppose after a high-smog alert day in your city, a 5-year-old child with asthma, a 50-year-old male...
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