https://www.nhs.uk/conditions/mastoiditis/
Find out about mastoiditis, a serious bacterial infection that affects the mastoid bone behind the ear.
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https://www.merckmanuals.com/home/ear-nose-and-throat-disorders/middle-ear-disorders/mastoiditis
Mastoiditis - Learn about the causes, symptoms, diagnosis & treatment from the Merck Manuals - Medical Consumer Version.
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