title: [Quantitative structure of the lung-air sac system in birds].
mesh_terms: D000400:Air Sacs / Q000033:anatomy & histology*; D000818:Animals; D001717:Birds; D010856:Columbidae; D005777:Geese; D006801:Humans; D012826:Silicone Elastomers; D013045:Species Specificity; D014422:Turkeys
chemical_list: D012826:Silicone Elastomers
vernacular_title: Der quantitative Aufbau des Lungen-Luftsacksystems der Vögel.