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MedlinePlus is a service of the National Library of Medicine (NLM), the world's largest medical library, which is part of the National Institutes of Health (NIH). It was built as an online health information resource for patients and their families and friends.

MedlinePlus presents high-quality, easy to understand, relevant health and wellness information that is trusted.

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Lupus - National Library of Medicine

What is lupus? Lupus is a chronic (long-lasting) type of autoimmune disease.Autoimmune diseases happen when your immune system attacks healthy cells and ...

Lymphoma - National Library of Medicine

Lymphoma is a cancer of a part of the immune system called the lymph system. There are many types of lymphoma. One type is Hodgkin disease. The rest are called ...

Melanoma - National Library of Medicine

Melanoma is the most serious type of skin cancer. Often the first sign of melanoma is a change in the size, shape, color, or feel of a mole. Most melanomas have ...

Mpox - National Library of Medicine

What is mpox? Mpox, which used to be called monkeypox, is a disease caused by the monkeypox virus. This virus is in the same family of viruses as the ...

MRI Scans - National Library of Medicine

Magnetic resonance imaging (MRI) uses a large magnet and radio waves to look at organs and structures inside your body. Health care professionals use MRI scans ...



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