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Patient Recruitment

Williams Syndrome (WS) and Supravalvular Aortic Stenosis (SVAS)

Healthy Volunteers Needed

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The National Institutes of Health (NIH) seeks healthy volunteers for a study about blood vessel stiffness. In this study, healthy volunteers will be compared with patients with rare genetic conditions that affect the blood vessels. All study-related procedures are provided at no cost and compensation is provided.

About your participation:

  • It may take several visits to the NIH Clinical Center to complete all components of the study (exact days and times to volunteer are flexible depending on your availability)
  • Blood and urine collection
  • CT scans, Holter monitor, echocardiogram, MRI/MRA (magnetic resonance angiography), and ultrasound imagings, among other tests

Who can participate?

  • Healthy volunteers 3-85 years old
  • You must NOT have a history of a genetic heart condition

Location: The NIH Clinical Center, America's Research Hospital, is located on the Metro red line (Medical Center) in Bethesda, Maryland.

For more information, contact:
The Office of Patient Recruitment
TTY users call via MD Relay 7-1-1
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Or go online:
Refer to study 16-H-0144

Department of Health and Human Services
National Institutes of Health Clinical Center (CC)
National Heart, Lung and Blood Institute (NHLBI)

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This page last updated on 10/22/2021

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