Patients infected with hepatitis C are preparing to sue in short order states that restrict Medicaid coverage of Sovaldi, and they're using as a model a lawsuit that cystic fibrosis patients recently filed in Arkansas, where Medicaid uses a prior authorization policy to curb use of the cystic fibrosis drug Kalydeco, according to Donna Cryer, of the Global Liver Institute. National Association of Medicaid Directors Executive Director Matt Salo said he isn't surprised that liver patients plan to sue but...