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My Answered Questions
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where does hiv comes from/?
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is there any vaccine for malaria/?if not why /?
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why does cancer has no cure ?
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why does the doctor use to wear the white coat when they are working ?
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when i want to be a doctor what can i focus most ?
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what causes cancer?
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human being cannot survive without food why?
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why does the ship cannot sink in water?
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is it possible to transplant human brain? if no why not?
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