CHICAGO - A panel of the Seventh Circuit U.S. Court of Appeals on July 26 affirmed the dismissal of a proposed class action lawsuit alleging that six health insurance companies violated Wisconsin state law by requiring copayments for chiropractic care, saying that although the insurance companies were proper defendants, the practice of requiring chiropractic copayments is not a fiduciary act under the Employee Retirement Income Security Act (Cynthia Larson, et al. v. United Healthcare Insurance Co., et al., No. 12-1256, 7th Cir.; 2013 U.S. App. LEXIS 15272).