Plaintiffs: Motion To Exclude Parkinson's Testimony Based on 'Shoddy' Evidence

CLEVELAND -- A defense motion to exclude testimony implicating manganese exposure as a factor in the development of Parkinson's disease should fail, plaintiffs claim in a recent filing, because Parkinson's disease and manganese-induced neurological disease diagnoses are not distinct and separate but are often interchangeable. In re: Welding Rod Product Liability Litigation, Docket No. 1535 (N.D. Ohio).

In a Dec. 17 opposition filed in the U.S. District Court for the Northern District of Ohio, the Welding Rod Products Liability Litigation MDL plaintiffs claim that in order for the defendants' motion to survive, the court would be forced to ignore public …