Accessibility is committed to providing access to all individuals seeking information on our website. To provide this information, the site has been designed to comply with Section 508 of the U.S. Rehabilitation Act.

Section 508 requires that all individuals with disabilities have access to and use of information and data comparable to that provided to individuals without disabilities, unless an undue burden would be imposed.

When documents are presented on our website in PDF and other file formats, the National Institutes of Health and Northwestern University endeavor to provide text equivalents and/or make such content accessible according to the guidelines set forth by the creators of those formats.

If you are using assistive technology and experience difficulty in accessing information on this website, please contact us.

Please note the nature of the accessibility problem, the URLs of any specific web pages or documents involved, and your contact information, so that a member of the HealthMeasures team can respond to you.