title: Ultrastructural studies of apertures in the interalveolar septum of the adult human lung.
mesh_terms: D000328:Adult; D000368:Aged; D006801:Humans; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D008875:Middle Aged; D011650:Pulmonary Alveoli / Q000648:ultrastructure*