Inhalation lung scanning.
D000336:Aerosols; D000402:Airway Obstruction / Q000175:diagnosis; D000792:Angiography; D006801:Humans; D001239:Inhalation; D010477:Perfusion; D011655:Pulmonary Embolism / Q000175:diagnosis*; D011877:Radionuclide Imaging
D000336:Aerosols