(February 22, 2017, 1:26 PM EST) -- CINCINNATI — The Sixth Circuit U.S. Court of Appeals on Feb. 21 affirmed a preemption ruling in a Depakote birth defect case and said the trial judge did not err in limiting plaintiff experts’ testimony or failing to give the jury her proposed instructions about warnings (Pamela Rheinfrank, et al. v. Abbott Laboratories, Inc., et al., No. 16-3347, 6th Cir.)....