title: The chronic perfusion defect: our knowledge is still hazy, but the message is clear.
authors.affiliation: Michigan State University, East Lansing, USA.
authors.forename: A
authors.initials: A
authors.lastname: Gottschalk
mesh_terms: D002908:Chronic Disease; D005343:Fibrinolytic Agents / Q000627:therapeutic use*; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging* / Q000188:drug therapy; D011877:Radionuclide Imaging; D014692:Ventilation-Perfusion Ratio
chemical_list: D005343:Fibrinolytic Agents