(November 7, 2017, 11:11 AM EST) -- CHICAGO — An Illinois federal judge on Oct. 26 preliminarily approved a settlement in a class action suit alleging that insurers wrongfully refused to pay for a treatment that could cure the plaintiffs’ chronic hepatitis C (Mark A. Shank v. Health Care Service Corp. et al., No. 16-3993, N.D. Ill.)....