He hasn't published any research. Though he is quoted somewhat as developing some sort of scale or other based on his patient support group clinical research... I don't know. Couldn't find much. Myhill mentions him as well somewhere on her site. But I only Googled briefly and could then see no actual published papers for him.
I must say B12 did sod all for me. There was a lot of publicity about this chap - again from Google - and his B12 for fatigue claims. You'd have to look. I dunno what dose he was prescribing or how he was prescribing it (pills or injection), but maybe that too had some bearing on his case...
Honestly I do find it 'strange' that on the one hand we are ever calling for proper evidence of claims for treatment, and yet on the other we seem perfectly willing to advocate for those who prescribe things with no apparent scientific claim e.g. supplements.
Maybe B12 does need a proper going over. Maybe it already has in the literature - don't know, can't be arsed to check. I suppose as a patient if I believed something was helping to make me feel better I certainly would protest if it was taken away. Then again, I used to get vitamin and mineral injections weekly from this German doctor in Jersey, thought he knew what he was doing, but then he fled the island and anyway, it all seemed to do nothing for me: other than cost a lot.
But, horses for courses. Such is life. I'm tired. Sorry it's not a great post. I don't want to get into any arguments...