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MLA Citation
L Si et al.. “1257PKEYNOTE-151: A phase Ib study of second-line pembrolizumab (Pembro) for Chinese patients (pts) with advanced or metastatic melanoma.” Annals of oncology, vol. 29, n.d., p. . http://access.bl.uk/ark:/81055/vdc_100095476676.0x00003c