title: Commentaries on viewpoint: unresolved mysteries.
authors.affiliation: Emeritus Professor Institute of Anatomy, University of Berne.
authors.forename: Ewald R
authors.initials: ER
authors.lastname: Weibel
authors.forename: Gary F
authors.initials: GF
authors.lastname: Nieman
authors.forename: Louis A
authors.initials: LA
authors.lastname: Gatto
authors.forename: David G
authors.initials: DG
authors.lastname: Frazer
authors.forename: Johannes C
authors.initials: JC
authors.lastname: Schittny
authors.forename: Jason C
authors.initials: JC
authors.lastname: Woods
authors.forename: Mark S
authors.initials: MS
authors.lastname: Conradi
authors.forename: Dmitriy A
authors.initials: DA
authors.lastname: Yablonskiy
mesh_terms: D000818:Animals; D006801:Humans; D008168:Lung / Q000502:physiology*; D008954:Models, Biological; D013990:Tidal Volume / Q000502:physiology*