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Effects of equipment and technique on peak flow measurements

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Figure

Table 2: Mean PEF recorded using both techniques on three devices.
Figure 2Three devices using "peak flow technique"motachograph spirometer (circles). The values shown are the best of two measurements with each device
Figure 3"Peak Flow technique" with Wright meter and Fleisch pneumotachograph spirometer and conversion to new EU scale"Peak Flow technique" with Wright meter and Fleisch pneumotachograph spirometer and conversion to new

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