Providing a solid primer on the rules for analyzing the propriety of a rebuttal report from an expert under Federal Rule of Civil Procedure 26(a)(2)(D)(ii) — and explaining why a “structured approach” is “advisable” when drafting these documents — U.S. Magistrate Judge Young B. Kim granted Atrium Medical Corp.’s request to bar testimony from Scott Guelcher, Ph.D., in Randy J. Africano’s product-liability case.Atrium manufactured the polypropylene mesh that was implanted in …