Montaudon M, Berger P, de Dietrich G, Braquelaire A, Marthan R, Tunon-de-Lara JM, Laurent F. Assessment of airways with three-dimensional quantitative thin-section CT: in vitro and in vivo validation. Radiology. 2007 Feb;242(2):563–72. doi: 10.1148/radiol.2422060029. PMID: 17179398.