86. Effect of Oral Fosfomycin Compared to the Intravenous Beta Lactam/Beta-Lactamase Inhibitor or Carbapenem in Step-down Treatment of Patients with Complicated Urinary Tract Infection due to Extended-Spectrum Beta-Lactamase (ESBL) Producing <i>Enterobacteriaceae</i>: A Multicenter, Open-label, Randomized Controlled, Non-inferiority Trial
Open forum infectious diseases