Fig. 1From: Underestimation of airway luminal eosinophilia by quantitative sputum cytometrySputum Eosinophilia at threshold of ≥ 1.2%. The Euler diagram show the incremental proportions when eosinophilia is assessed using a single intact cell differential, when free granules are considered, and when a second sample is examined (extrapolation to the whole sample from the subset who had re-emergence demonstrated)Back to article page