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Overall Survival at brain metastasis(es) diagnosis in the whole population and according to PD-L1 expression, number of brain metastasis(es) and the presence of lung metastasis(es): (a) Overall survival of 82 patients at BM diagnosis, (b) Overall survival according to PD-L1 expression in primary tumor, (c) Overall survival according to the BM number, (d) Overall survival according to the presence of lung metastasis(es) at BM diagnosis.
