Lack of proof does not mean it is not true

Of course not, but this is just the latest in a pattern of wildly improbable claims that appear to support his views, but no evidence can be produced.

If this paper was submitted to BMJ it was one of "7000-8000" every year of which only 7% are accepted.
Musket can give chapter and verse on the specific reasons for refusal of that one paper, even though the journal guarantees absolute confidentiality, and he splurges it over an internet forum.

Of course it might be true, and is not even the most outrageous of his many such claims, but I think a jury would conclude that he made it up.