The fissure sign: its multiple causes.
D002648:Child; D003550:Cystic Fibrosis / Q000175:diagnosis; D005260:Female; D006801:Humans; D006976:Hypertension, Pulmonary / Q000175:diagnosis; D008171:Lung Diseases / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D010996:Pleural Effusion / Q000175:diagnosis; D011652:Pulmonary Circulation; D011655:Pulmonary Embolism / Q000175:diagnosis; D011656:Pulmonary Emphysema / Q000175:diagnosis; D011877:Radionuclide Imaging; D013147:Spirometry; D014655:Vascular Resistance