Thousands of Anthem Blue Cross and Blue Shield members won't be able to use Middletown, CT-based Middlesex Hospital—or will have to pay more to do so—unless the two sides agree on a new contract by May 1. Negotiations between Blue Cross and Middlesex broke down over reimbursement issues. Anthem has sent letters to its members saying that the hospital would no longer be part of its network as of May 1, but that they could still get emergency care there.