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. 2015 Apr 30:465–514. doi: 10.1007/978-94-017-9882-2_22

Fig. 22.16.

Fig. 22.16

Influenza A (H1N1) complicated by pneumonia. X-ray demonstrates large areas of high-density shadow in both middle and lower lung fields that is more obvious in both lower lung fields, with unclearly defined bilateral costophrenic angles