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HELP GUIDE

If you are having difficulty with our site or getting access to the information you need, the following information should help.

HELPFUL RESOURCES

If you are having technical difficulties, please refer to our technology requirements below to ensure your system meets the minimum requirements. If your problems are not resolved, please contact the NLM Webmaster (tehip@teh.nlm.nih.gov) for further assistance.

TECHNOLOGICAL REQUIREMENTS

Web Browsers - This site functions and displays as intended in Internet Explorer versions 7, 8, and 9. Users of other desktop browsers may experience minor differences in look and feel, since all browsers do not follow the W3C accessibility guidelines to exact specifications for HTML, XML, etc.
Javascript must be enabled to use the calculators. In order to save profiles for the calculator, your browser security settings must be configured to allow cookies. Not all features of the site will be available for users of mobile browsers.