(June 28, 2016, 12:38 PM EDT) -- NEW ORLEANS — In a personal injury lawsuit, a Louisiana federal judge on June 23 barred expert testimony on the velocities of vehicles involved in the crash and the load or force experienced by one of the drivers, as well as medical causation opinions (Robert Parker, et al. v. NGM Insurance Co., et al., No. 15-2123, E.D. La.; 2016 U.S. Dist. LEXIS 81836)....