Hi Dr. D!
Welcome. I'm sorry to say I don't know the answer to your question . . .
Note: you're not supposed to cross-post, i.e., post the same thing in two forums. However, maybe someone will answer you in your other post. Good luck.
And if you tell us more about yourself in this
thread, I'll leave up both your posts, 'cause everyone deserves an introductory thread (if they want one).