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Table 2 The overall response rate and median survival between PD-L1 positive and negative groups across all cancer stages

From: Immunohistochemical expression and prognostic value of PD-L1 in Extrapulmonary small cell carcinoma: a single institution experience

  PD-L1 positive (n = 12) PD-L1 negative (n = 22) P value
Received treatment 10 (83%) 16 (73%)  
Response rates to treatment 8 (80%) 11 (67%) 0.67
Median overall survival (mo.) 11.5 7 0.34