(July 11, 2016, 9:29 AM EDT) -- WAUSAU, Wis. — A trial judge erred in excluding defense experts from testifying that maternal forces of labor caused a child’s permanent brachial plexus injury in a lawsuit alleging that a doctor’s negligence caused the injury, a Wisconsin appeals panel ruled July 6 (Unity Bayer by her guardian ad litem, Vincent R. Petrucelli, et al. v. Brian D. Dobbins, M.D., et al., No. 2015AP1470, Wis. App., Dist. 3; 2016 Wisc. App. LEXIS 412)....