title: [Effect of a decrease in the density of an inspired gas mixture on external respiration].
mesh_terms: D006371:Helium; D006801:Humans; D010100:Oxygen; D012119:Respiration
chemical_list: D006371:Helium; D010100:Oxygen
vernacular_title: O vliianii snizheniia plotnosti vdykhaemoĭ gazovoĭ smesi na vneshnee dykhanie.