Idiopathic Retroperitoneal Fibrosis — Methotrexate as a Steroid-sparing Agent in Idiopathic Retroperitoneal Fibrosis: a Randomised, Multicenter Trial
Citation(s)
Medical Therapy in Idiopathic Retroperitoneal Fibrosis: a Multicenter, Randomized, Controlled Trial of Prednisone vs Low-dose Prednisone Plus Methotrexate