Re: computation of ventilation-perfusion studies ratio with Kr-81m in pulmonary embolism.
D006801:Humans; D007726:Krypton; D008433:Mathematics; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging*; D011868:Radioisotopes; D011877:Radionuclide Imaging; D014692:Ventilation-Perfusion Ratio
D011868:Radioisotopes; D007726:Krypton