451 Outcomes of patients with unresectable hepatocellular carcinoma who developed an infection while receiving Atezolizumab - Kai Sun; Maen Abdelrahim; Yuqi Zhang; Catherine Wiechmann; Jiaqiong Xu; Ethan Burns; Ryan Kieser; Shivan Shah; Godsfavour Umoru; Abdullah Esmail; Kelly Gee (Journal for ImmunoTherapy of Cancer, 2023)