P. Vasilev, S. Popovska, E. . Petrova Kraevska, M. Karamanliev, D. Dimitrov, and I. Yordanova, “Relationship Between PD-L1, PD-1, CD8 and Clinicopathological Factors in Primary SCCs”, Dermatol Pract Concept, vol. 14, no. 3, p. e2024176, Jul. 2024, doi: 10.5826/dpc.1403a176.