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andi andi
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6 years ago
What is the most common cause of acute bronchiolitis?
 
  A) Bacterial infection
  B) Hereditary factors
  C) Prenatal complications
  D) Viral infection
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matijsmatijs
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6 years ago
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andi Author
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6 years ago
Face with Cold Sweat Can you answer the others that I've posted too?
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