Figure 1.

Flow diagram study design. Abbreviations: BHR = Bronchial Hyper-Responsiveness, BMI = Body Mass index, EBC = Exhaled Breath Condensate, FeNO = Fractional exhaled Nitric Oxide, VO2max = Maximal Oxygen Uptake.

Willeboordse et al. BMC Public Health 2013 13:494   doi:10.1186/1471-2458-13-494
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