Figure 1From: The sitting position during neurosurgical procedures does not influence serum biomarkers of pulmonary parenchymal injury Surfactant protein D (SP-D) and Clara cell protein (CC16) concentration in patients undergoing surgery in the sitting and the supine positions. The horizontal line represents the median; the box encompasses 25th - 75th percentiles (the interquartile range, IQR), and the whiskers show upper and lower quartiles.Back to article page