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 | Hey girl, i know its your wedding day and all but i just have to know... |  |
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 | what do you "have to know" right at this second. |  |
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 | What does a PET scan determine? |  |
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 | Does it look like I know? hahaha |  |
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 | Um, yeah actually, you're a doctor. You don't have to be so rude Lila. |  |
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 | I'm sorry. A PET scan determines the electrical activity on the surface of the brain. |  |
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