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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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K

Kaposi Sarcoma - National Library of Medicine

Kaposi sarcoma (KS) is a cancer that causes patches of abnormal tissue to grow under the skin, in the lining of ... of cancer cells, blood vessels, and blood cells. KS is caused by infection with human herpesvirus-8 ( ...

Vitamin K - National Library of Medicine

Vitamins are substances that your body needs to grow and develop normally. Vitamin K helps your body by making proteins for healthy bones and tissues. It also ...

Vitamins - National Library of Medicine

... folate) Vitamin C Vitamin D Vitamin E Vitamin K You can usually get all your vitamins from ... Your body can also make vitamins D and K. People who eat a vegetarian diet may need ...

Bleeding - National Library of Medicine

Bleeding is the loss of blood. It can be external, or outside the body, like when you get a cut or wound. It can also be internal, or inside the body, like when ...