Mealey's (January 24, 2018, 10:10 AM EST) -- SAN FRANCISCO — To prevail on their claims, plaintiffs must show that an insurer’s interpretation of plan documents was implausible, a standard a class action challenging guidelines governing mental health and substance abuse coverage cannot meet, an insurer tells a federal judge in California in a Jan. 23 post-trial brief (David and Natasha Wit, et al. v. United Behavioral Health, No. 14-02346, Gary Alexander, et al. v. United Behavioral Health, No. 14-5337, N.D. Calif.)....