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68.7 MB (16.2 MB compressed)
6000 x 4000 pixels
50.8 x 33.8 cm ⏐ 20.0 x 13.3 in (300dpi)
ROGER HARRIS / SCIENCE PHOTO LIBRARY ROGER HARRIS / SCIENCE PHOTO LIBRARY
Illustration of Helicobacter pylori bacteria. H. pylori is a Gram-negative helical bacterium found in the mucus lining of the stomach. It causes gastritis, and is also the most common cause of stomach ulcers. It may also be a cause or co-factor for gastric cancer as its presence increases the risk of developing stomach tumours.
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