Respirology : official journal of the Asian Pacific Society of Respirology
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Water is the main constituent of mucus, and its concentration is likely to be important in all aspects of mucus function, including ciliary clearance. The objective of this study was to investigate the effect of water content and osmolality of the mucus on mucociliary transportability. ⋯ These results suggest that the osmolality of sputum exerts a greater influence on mucociliary clearance than its viscoelastic properties.