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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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B

B Vitamins - National Library of Medicine

The B vitamins are: B1 (thiamine) B2 (riboflavin) B3 (niacin) B5 (pantothenic acid) B6 B7 (biotin) B12 Folic acid These vitamins help the process your body uses ...

Hepatitis - National Library of Medicine

... by one of several viruses -- hepatitis viruses A, B, C, D, and E. In the United States, A, B, and C are the most common. Alcoholic hepatitis ... by eating undercooked pork, deer, or shellfish. Hepatitis B, hepatitis C, and hepatitis D spread through contact ...

Vitamins - National Library of Medicine

... vitamins your body needs. They are: Vitamin A B vitamins (thiamine, riboflavin, niacin, pantothenic acid, biotin, vitamin B-6, vitamin B-12 and folate) Vitamin C ...

HIV/AIDS - National Library of Medicine

What is HIV? HIV stands for human immunodeficiency virus. It harms your immune system by destroying a type of white blood cell that helps your body fight ...

Leukemia - National Library of Medicine

What is leukemia? Leukemia is a term for cancers of the blood cells. Leukemia starts in blood-forming tissues such as the bone marrow. Your bone marrow ...

Medicare - National Library of Medicine

... four parts: Part A is hospital insurance Part B helps pay for medical services that Part A ... Medicare Advantage. If you have Parts A and B, you can choose this option to receive all ...

Sepsis - National Library of Medicine

What is sepsis? Sepsis is your body's overactive and extreme response to an infection. Sepsis is a life-threatening medical emergency. Without quick treatment, ...