Effects of helium and oxygen mixtures on pulmonary mechanics during airway constriction.
D000818:Animals; D001991:Bronchitis / Q000503:physiopathology; D004285:Dogs; D006371:Helium / Q000494:pharmacology*; D006632:Histamine / Q000494:pharmacology; D008168:Lung / Q000502:physiology*; D010100:Oxygen / Q000494:pharmacology*; D011656:Pulmonary Emphysema / Q000503:physiopathology; D012119:Respiration / Q000187:drug effects* / Q000502:physiology*; D014132:Trachea / Q000503:physiopathology; D014630:Vagus Nerve / Q000502:physiology
D006371:Helium; D006632:Histamine; D010100:Oxygen