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MLA Citation
Pier Luigi Zinzani et al.. “Pembrolizumab monotherapy in patients with primary refractory classical hodgkin lymphoma who relapsed after salvage autologous stem cell transplantation and/or brentuximab vedotin therapy: KEYNOTE-087 subgroup analysis.” Leukemia & lymphoma, vol. 61, no. 4, 2020, pp. 950–954. http://access.bl.uk/ark:/81055/vdc_100105293528.0x000037