Images in cardiovascular medicine. Westermark's and Palla's signs in acute pulmonary embolism.
Sreenivasan
Shiva
S
North Bristol NHS Trust, Bristol, United Kingdom. shivasreenivasan@nhs.net
Bennett
Sarah
S
Parfitt
Vernon J
VJ
D000208:Acute Disease; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging*; D013902:Radiography, Thoracic; D011877:Radionuclide Imaging