Programmed cell death-1 and its ligands: Current knowledge and possibilities in immunotherapy - Gutic, Bojana; Bozanovic, Tatjana; Mandic, Aljosa; Dugalic, Stefan; Todorovic, Jovana; Stanisavljevic, Dejana; Dugalic, Miroslava Gojnic; Sengul, Demet; Detanac, Dzenana A; Sengul, Ilker; Detanac, Dzemail; Soares Junior, Jose Maria (Clinics, 2023)