Quoting dizziness-and-balance.com

Graphics on this site (including movies), except material copyrighted to other people, may be used for noncommercial purposes, including use on the internet and other forms of electronic media, but you must acknowledge the source. Copying an image, or movie, or more than a few senteces of text from this site to your own site or document without an attribution to the source is straightforward plagiarizing - -it is both illegal (as this site is copyrighted) as well as unethical.

Items marked (c) Northwestern University are included with this general permission statement.

There are a few portions of this site where we use a graphic from another source, and acknowledge that source. Permission for these graphics should be obtained from the original source.

The text below is an example of an appropriate acknowledgement.

(after http://owl.english.purdue.edu/owl/resource/557/09/)The path for the image and date that it was copied should be replaced with ones appropriate for your use.

Permission for commercial use of graphics should be obtained from Dr. Timothy C. Hain.

Technical comments about this site to thain@dizziness-and-balance.com