机译:Long‐term effectiveness of epidural steroid injections after new episodes of low back pain in older adults
Evidence and Research (CLEAR) Center for Musculoskeletal Disorders, The University of Washington;
Department of Anesthesiology and Pain Medicine,University of Washington;
Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, andDivision of Research,Kaiser Permanente Northern California;