Workers’ compensation — Expert medical advisor — Petition for writ of certiorari seeking quashal of portion of order instructing employer/carrier to provide EMA with records and depositions of a physician who was not an authorized treating doctor, independent medical examiner, or EMA, on ground that records and opinions of the physician were inadmissible and that providing them to EMA would cause e/c prejudice — Certiorari denied, as e/c failed to establish irreparable harm