Subtitle preview:
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Miss Mason, med tanke p�
din lysande lyssnarf�rm�ga-
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- kan v�l du ber�tta
hur m�nga syremolekyler-
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...en hemoglobinmolekyl kan binda?
- Fyra.
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- Och hemoglobin �r?
- J�rninneh�llande syretransport...
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