Mucociliary ClearanceMucusTracheaCiliary Motility DisordersCiliaTechnetium Tc 99m Aggregated AlbuminGuaifenesinAmbroxolNasal MucosaRheologyAerosolsRespiratory MucosaBronchiViscosityNitrobenzoatesBiological TransportLungBiological Transport, ActiveIon TransportAxonal TransportTechnetium Tc 99m Sulfur ColloidMucous MembraneMembrane Transport Proteins