Regional ventilation studies with Kr-81m and Xe-133: a comparative analysis.
D006801:Humans; D007726:Krypton; D008173:Lung Diseases, Obstructive / Q000175:diagnosis*; D011655:Pulmonary Embolism / Q000175:diagnosis*; D011868:Radioisotopes; D012129:Respiratory Function Tests; D014980:Xenon Radioisotopes
D011868:Radioisotopes; D014980:Xenon Radioisotopes; D007726:Krypton