An aphthous ulcer (canker sore)

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An aphthous ulcer (canker sore).

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Size: 5200px × 3231px
Location: Massachusetts,
Photo credit: © Custom Life Science Images / Alamy / Afripics
License: Licensed
Model Released: Yes

Keywords: aphthous, canker, cankers, disease, disgusting, hurt, islc, lip, membrane, mucous, ouch, pain, painful, sore, sores, stomatitis, sutton, ulcer