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Thyroid
Learn about this important gland.
Understanding Graves' disease
An overactive thyroid can cause a variety of health problems, but treatment almost always helps.
The basics
Thyroid lumps: Common but rarely cancerous
An underactive thyroid may need a boost
Thyroid quiz
Understanding thyroid cancer
The facts on overactive thyroid
More information
The facts on overactive thyroid
Thyroid disease may masquerade as depression
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