“…First-line therapy is invariably corticosteroids, [1, 3-7, 16, 17, 19-22, 24, 25] although there are no adequate randomized controlled trials to support this [3,6,9,13,17]. Other immunosupressives, notably azathioprine and methotrexate, are widely used as second-line agents in refractory cases or as steroid-sparing agents [1,3, 4, 6, 7, 9, 15, 16, 18-21, 25,26].…”