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United States Public Health Service

The United States Public Health Service (USPHS or PHS) is a collection of agencies of the Department of Health and Human Services concerned with public health, containing nine out of the department's twelve operating divisions. The Assistant Secretary for Health oversees the PHS.

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Centers for Disease Control and Prevention

The Centers for Disease Control and Prevention (CDC) is a national public health agency in the United States.

Centers for Medicare and Medicaid Services

Department of Health and Human Services

Health Resources and Services Administration

The Health Resources and Services Administration (HRSA) is an agency of the U.

Infectious disease

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Mississippi River

The Mississippi River is one of the longest rivers in the world, stretching over 2,300 miles from its source at Lake Itasca in northern Minnesota to its mouth at the Gulf of Mexico.

National Cancer Institute

The National Cancer Institute (NCI) coordinates the United States National Cancer Program and is part of the National Institutes of Health (NIH), which is one of eleven agencies that are part of the U.