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I got my answer in "Answer" + "Clarification".

It was just a fun exercise. But you pointed things out I hadn't considered.

Many thanks. 

Have a delightful holiday!

MMMMMMmmmm. Those biscuits smell delicious.

Your TaxMama-ga

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I got my answer.

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All this information is great.  Thank you for including the databases
you searched and the terms you used.  The articles (from the abstract)
look very promising.  Excellent research.  Thank you.

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Very good effort for the posted price.  The answer was not all that I
hoped it would be but it would appear that the data is very hard to
come by.  So the rating was just one star short of great.

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That was fantastic! THANKS

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what i wanted

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Thank you, Claudietta, you wre very thorough. I didn't get exactly
what I was looking for, but I got a lot of stuff I can use and am very
satisifed with the time and effort you put into it. So: 4 stars for
the answer, 5 stars for the effort. Thanks.

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