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1 文献来源rnPaz ? Ares L, Dvorkin M, Chen Y, et al.Durvalumab plus platinum?etoposide versus platinum?etoposide in first?line treatment of extensive?stage small?cell lung cancer(CASPIAN):A randomised, controlled,open?label,phase 3 trial [J]. Lancet, 2019,394(10212):1929-1939.