Calpers, others sue Pfizer as 'opt outs' to class action
Posted on November 16, 2012 at 13:42 PM EST
NEW YORK, Nov 16 (Reuters) - A dozen large investors have sued Pfizer Inc for securities fraud, distancing themselves from a long-running shareholder class action over allegations the company misled them about the safety of the pain relievers Celebrex and Bextra.