Response to: 'Are autoantibodies to RNA-polymerase III to be incorporated in routine diagnostic laboratory algorithms for systemic autoimmune rheumatic diseases?' by Jan Damoiseaux. Issue 5 (3rd February 2014) - Fransen, J; Pope, J; Baron, M; Johnson, S; Khanna, D; Matucci-Cerinic, M; Tyndall, A; van den Hoogen, F