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"they have the advantage of measuring advertising subjectively"

Should that say "they have the advantage of measuring advertising objectively" what with advertising spend being something declared and measured as a cost of business.

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Thanks. Corrected.

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If I may add to the “evidence” my personal experience is that reading your reports of these fraudulent charlatans makes me reach for the bottle to calm my anger.

Keep up the good work!

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Indeed. As I like to say, Cochrane Review beats peer review beats pal review beats anecdote beats pulled it out of where the sun don't shine. Same goes for the Cochrane Review about masks earlier this year, which itself was an update from the one in 2020.

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