Nope, doesn't. Appears to be another mtDNA comparison, which doesn't yield relevant info, except to say, oh, maybe we don't have any mtDNA samples showing the same line of descent. This isn't particularly illuminating considering how few of us have our mtDNA sequenced. Also, the sample size in the 1997 study involved fewer than 400 base pairs (out of a presumed 16,000+ base pairs in the living original), and this isn't going to be much better, could even be worse, because this is an older sample.