%0 Journal Article %T Drug Permeation Characterization of Inhaled Dry Powder Formulations in Air-Liquid Interfaced Cell Layer Using an Improved, Simple Apparatus for Dispersion %A Asai, Ayumu %A Okuda, Tomoyuki %A Sonoda, Erina %A Yamauchi, Tomoyo %A Kato, Saki %A Okamoto, Hirokazu %J Pharmaceutical Research %V 33 %N 2 %P 487-497 %@ 0724-8741 %D 2015-10-21 %I Springer US %~ DeepDyve