Yes, I read that part and it certainly explains how they got the rate for previous vaccinations. It doesn’t specifically say that is how they got their rate for COVID vaccinations though.
If that is the only clue they give, then I wonder, how many studies exactly were published before December 2021 on the rate of myo and pericarditis post-COVID vaccination, and which met their criteria?
True, but that’s the beauty of legitimately published scientific research. If they reported on a number and don’t source the data for others to reproduce they’ll get roasted and lose all credibility for future endeavors.
Turns out this is a bigger problem for researchers than for Substack authors.