Hi Deb.
Don't know a thing about it myself, but I remember there was quite a bit about it on the old board. What a pity that database isn't there! However, you might try googling for it, some of that info is archived - so put in something like:
braintalk DMSO
then click on "repeat search with omitted results" and remember to click the "cached" thingy for whatever results come up....
Good luck,
all the best