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A liver biopsy involves inserting a needle between the ribs to collect a small sample of liver tissue. Samples of liver tissue can

A liver transplant is a surgical procedure that removes a severely diseased liver and replaces it with a healthy liver from an

A living will, also called a declaration, is a type of advance directive. It documents your wishes about end-of-life medical

Lupus is a long-term autoimmune disease. This means that your immune system attacks your body's healthy tissues. Lupus may cause

Lyme disease is an illness from getting bitten by a tick infected with a certain type of bacteria. It can cause fatigue, headache

Lymph nodes are part of the lymph system, which carries lymph fluid, nutrients, and waste material between the body tissues and

A lymphocyte is a type of white blood cell that is produced in the spleen, tonsils, thymus gland, and the lymph nodes and other

Laminectomy and laminotomy are surgeries done to relieve pressure on the spinal cord and/or spinal nerve roots by removing all or

Laparotomy is a procedure in which a surgeon makes an incision in the lower abdomen in order to inspect the abdominal cavity

Local anesthesia is a method to deliver pain control medicine to a specific area. It can be injected or applied to the skin or