From what I can gather, this is fairly new and is still gaining acceptance. Article says the U. of Cal med. school in San Diego is looking hard at it and publicizing results. Doesn't sound like quackery to me if that's the case.

I'm going to see what I can get from the Univ. directly -- avoid the purely anecdotal route.

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1986 300SDL, 362K
1984 300D, 138K