Dear Shannon,
Deborah, an excellent expert here, asked me to see if I can help.
Well, I didn't have a clue! But I'm sneaky, and I'm an old guy with lots of time, so I took a look around the professional literature, some of which I understand and some of which I don't.
I found a web page and am linking you to it. I have not read it all, and at my age, we can ge very tired.
Since I can tell from the way your question is composed that you are more than intelligent, you are literate. So, I'm giving you the link witout my usual explanation for now.
I'll return to JA later today to answer any questions you have. I hope that's okay.
http://www.nlm.nih.gov/medlineplus/ency/article/001311.htm
Good night.
Teaching Doc
What I tell you is what I teach. I'm here to help improve your quality of life, and I'll work with you as long as necessary to help you.
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