27.7 MB (3.1 MB compressed)
3794 x 2550 pixels
32.0 x 21.6 cm ⏐ 12.6 x 8.5 in (300dpi)
SCOTT CAMAZINE / SCIENCE PHOTO LIBRARY SCOTT CAMAZINE / SCIENCE PHOTO LIBRARY
Psoriasis, an inflammatory skin disease characterized by recurring rash-like patches with silvery scales, on the elbow of a forty-four year-old man.
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