(March 12, 2024, 8:09 AM EDT) -- RICHMOND, Va. — A talc defendant defended its need for a list of mesothelioma study participants from a third party, saying in a brief to the Fourth Circuit U.S. Court of Appeals that the evidence is the only way it has of refuting asbestos-talc claims at trial and that the burden of showing otherwise lies with the party seeking to quash the subpoena....