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Information about cancer clinical trials at the NIH Clinical Center in Bethesda, Maryland.

A fact sheet that describes the sentinel lymph node biopsy procedure and details two clinical trials evaluating the effectiveness of this procedure.

Describes symptoms, causes, and treatment of primary hyperparathyroidism where one or more enlarged parathyroid gland secretes too much parathyroid hormone.

Describes rare forms of diabetes that result from mutations in a single gene. Discusses diagnosis, genetic testing, and counseling.

Describes Graves’ disease, an autoimmune disorder and the most common cause of hyperthyroidism in the United States, and its symptoms and treatment.

Reports about clinical research study results are often in the news, but it can be difficult to find out about studies that are in progress. If you or a loved one has a rare condition, you may be interested in participating in a research study. This guide can help you find current research studies.

Learn the causes and symptoms of GER and GERD, including bad breath, chest pain, swallowing trouble, or worn teeth.

Looking for some resources to help you teach kids about environmental health? Here are some good sources for lesson plans, activities, educational materials, and more.

The goal of the NHALES Study is to help scientists understand how bacteria and other factors in the environment affect people who have moderate to severe asthma.

Many women develop irregular menstrual cycles which may make it difficult to become pregnant and increase the risk of osteoporosis.