title: Studies of pulmonary and cardiac function using short-lived isotopes oxygen-15, nitrogen-13 and carbon-11.
mesh_terms: D001811:Blood Volume Determination; D002245:Carbon Dioxide / Q000378:metabolism; D002247:Carbon Isotopes; D002248:Carbon Monoxide / Q000378:metabolism; D006207:Half-Life; D006331:Heart Diseases / Q000000981:diagnostic imaging; D006334:Heart Function Tests; D006801:Humans; D007553:Isotope Labeling; D008168:Lung / Q000098:blood supply; D008171:Lung Diseases / Q000000981:diagnostic imaging; D008657:Metabolic Clearance Rate; D009587:Nitrogen Isotopes; D010103:Oxygen Isotopes; D011859:Radiography; D011868:Radioisotopes; D011874:Radiometry; D012039:Regional Blood Flow; D012129:Respiratory Function Tests; D014692:Ventilation-Perfusion Ratio; D014867:Water / Q000378:metabolism
chemical_list: D002247:Carbon Isotopes; D009587:Nitrogen Isotopes; D010103:Oxygen Isotopes; D011868:Radioisotopes; D014867:Water; D002245:Carbon Dioxide; D002248:Carbon Monoxide