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What is the mean of the baseline (month 0) FEV1 post-bronchodilator? # What is the mean of the baseline (month 0) FEV1 post-bronchodilator? tapply(X =

What is the mean of the baseline (month 0) FEV1 post-bronchodilator?

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# What is the mean of the baseline (month 0) FEV1 post-bronchodilator? tapply(X = CAMP$POSFEV, INDEX = CAMP$visitc, FUN = summary)

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