It’s not every day that a plaintiff attempts to re-litigate a case that ended in a nearly $20 million settlement, but one lawsuit working its way through the Pennsylvania courts is doing just that.

Plaintiffs who entered into a $19 million medical malpractice settlement with Abington Hospital in 2013 have sued the company again, alleging it failed to turn over an internal policy that would have significantly undercut the hospital’s main defense in the underlying case.