Clinical Research Concurrent optical and magnetic stimulation (COMS) for treatment of refractory diabetic foot ulcer; a prospective randomized, sham-controlled, double-blinded, pivotal clinical trial OPEN ENROLLMENT Major Extremity Trauma and Rehabilitation Consortium (METRC): Topical Antibiotic Therapy to Reduce Infection after Operative Treatment of Fractures at High Risk of Infection: TOBRA - A Multicenter Randomized Controlled Trial