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

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.

According to the Centers for Disease Control and Prevention, cigarette smoking causes more than 480,000 deaths each year in the United States, which translates to causing nearly one of every five deaths.

Diagnosis Confirmation - Several tests are available to test for B. pertussis. Learn which to use, when to use them, and how to interpret them.

Information for health professionals about Naegleria fowleri. Education and information about the brain eating ameba Naegleria fowleri that causes encephalitis and death including frequently asked questions, biology, sources of infection, diagnosis, treatment, prevention and control, and other publications and pertinent information for the public and medical professionals.

Information for health professionals about Naegleria fowleri. Education and information about the brain eating ameba Naegleria fowleri that causes encephalitis and death including frequently asked questions, biology, sources of infection, diagnosis, treatment, prevention and control, and other publications and pertinent information for the public and medical professionals.

The Environmental Polymorphisms Registry (EPR) is a long-term initiative to collect approximately 20,000 DNA samples from individuals.

This study intends to investigate the genetic and environmental risk factors involved in the development of myositis, an autoimmune muscle disease that causes chronic muscle weakness.

The gene p53 suppresses cancer and inflammation in the body, and NIEHS investigators speculate that changes in p53 lead to changes in inflammation and the ability to repair DNA damage.