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FEV1:FVC and PEFR in restrictive vs obstructive lung disease; how are they used?
a) FEV1/FVC decreased in both restrictive and obstructive
b) PEFR increased in restrictive, decreased in obstructive
c) FEV1/FVC decreased in restrictive, increased in obstructive
d) PEFR decreased in both restrictive and obstructive

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