Tiemann M, Samoilova V, Atiakshin D, Kostin A, Buchwalow I. The Cytomorphology of Melanoma with a Special Emphasis on the Immune Checkpoint Proteins CTLA-4, PD-1, and PD-L1. NatCellSci [Internet]. 2023 Dec. 30 [cited 2026 Oct. 15];1(2):44. Available from: https://cnsjournals.com/index.php/ncs/article/view/41