Yes, that's my guess, and is the explanation in the research paper. https://en.w...

		gus_massa on Aug 1, 2021 \| parent \| context \| favorite \| on: Has the lead-crime hypothesis been debunked? Yes, that's my guess, and is the explanation in the research paper. https://en.wikipedia.org/wiki/Publication_bias https://en.wikipedia.org/wiki/Reporting_bias https://en.wikipedia.org/wiki/Media_bias