This area is a table of contents or archive to all of the responses Dr. Phelps and Dr. Plyler have made to visitor's questions by topic or the type of question asked.  This archive will be updated at the end of each month or as soon as possible.  For current questions and answers please see the home page for the current months..

Note:  We're currently working on reordering the archives.  Until they're completed and installed, you may find it helpful to use the following list of categories to quickly go to a section you're interested in browsing.  To return to the top of this page, click your 'back' mouse button or press the  'Home" key on your keyboard. 

You may also find the search engine located here helpful in looking for information.  Thanks!