title: Emphysema: the 14th Annual Aspen Conference. Introduction to the conference.
mesh_terms: D000136:Acid-Base Equilibrium; D002245:Carbon Dioxide / Q000097:blood; D003120:Colorado; D003226:Congresses as Topic; D006801:Humans; D006863:Hydrogen-Ion Concentration; D010100:Oxygen / Q000097:blood; D011656:Pulmonary Emphysema / Q000097:blood / Q000503:physiopathology*
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen