Court of Appeals for the Sixth Circuit March 26, 1997, Nos. 96-4218, 96-4241, 96-4325 (Blue Cross & Blue Shield Mutual v. Blue Cross & Blue Shield Ass'n)

BOGGS, Circuit Judge.

Blue Cross & Blue Shield Mutual of Ohio (“BCBSO”), Columbia/HCA Healthcare Corporation, and Integrated Health Corporation (together with Columbia/HCA Healthcare Corporation, “Columbia”) appeal the district court’s order preliminarily enjoining BCBSO from using the Blue Cross and Blue Shield service marks of which the Blue Cross and Blue Shield Association (“BCBSA”) is