Figure 4
From: Mechanical ventilation and lung infection in the genesis of air-space enlargement
Correlations between percentages of infected secondary pulmonary lobules, mean alveolar area, and mean bronchiolar area. Closed circles, open triangles, and closed squares represent non-ventilated-inoculated piglets, ventilated-non-inoculated piglets, and ventilated-inoculated piglets, respectively. Each symbol is representative of one lung per animal except for non-ventilated-inoculated piglets, which are represented by two circles, each one corresponding to the right or left lung.