LungDecember 1988, Volume 166, Issue 1, pp 255–255 | Cite asEditorial: When does an adaptation become a disease?AuthorsAuthors and affiliationsM. Henry WilliamsArticle 17 Downloads This is a preview of subscription content, log in to check access.References1.Williams MH (1981) Why do the airways contain smooth muscle? Lung 159:291–293 (Editorial)PubMedCrossRefGoogle ScholarCopyright information© Springer-Verlag New York, Inc 1988Authors and AffiliationsM. Henry WilliamsThere are no affiliations available