All text and questions were written by Douglas Lake PhD. except for "Ouchterlony Activity," by Nathan Hartvigsen.

All banners, buttons, charts and images were created on Adobe Photoshop 4.0 by Nathan Hartvigsen except "westdiag.gif" by Dr. Lake and "chromagen.gif" by Marcia Underwood (used by permission).

All animations were created on MacroMedia Director 5.0 by Nathan Hartvigsen.