1. Rogers DF (1994) Influence of respiratory tract fluid on airway calibre. In: Raeburn D, Giembycz MA (eds). Airways smooth muscle: Development and regulation of contractility. Basel: Birkhäuser Verlag 375–399.
2. King M, Rubin BK (1994) Rheology of airway mucus: Relationship with clearance function. In: Takishima T, Shimura S (eds). Airway secretion: Physiological bases for the control of mucous hypersecretion. New York: Marcel Dekker 283–314.
3. Lucas AM, Douglas LC (1934) Principles underlying ciliary activity in the respiratory tract II: A comparison of nasal clearance in man monkey and other mammals. Arch Otolaryngol 20: 518–541.
4. Yoneda K (1976) Mucous blanket of rat bronchus: An ultrastructural study. Am Rev Respir Dis 114: 837–842.
5. Wanner A (1977) Clinical aspects of mucociliary transport. Am Rev Respir Dis 116: 73–125.