epithelial lining fluid
Epithelial lining fluid forms a thin fluid layer that covers the mucosa of the alveoli, the small airways, and the large airways. [ http://www.ncbi.nlm.nih.gov/pubmed/21948403 http://purl.obolibrary.org/obo/BTO_0005566 ]
Epithelial lining fluid forms a thin fluid layer that covers the mucosa of the alveoli, the small airways, and the large airways. [ http://www.ncbi.nlm.nih.gov/pubmed/21948403 http://purl.obolibrary.org/obo/BTO_0005566 ]