IMMUNE-CHECKPOINT-INHIBITOR THERAPY-PRINCIPLES AND RELEVANCE OF BIOMARKERS FOR PATHOLOGISTS AND ONCOLOGISTS Article Darr Christopher, Hilser Thomas, Kesch Claudia, Isgandarov Aykhan, Reis Henning, Wahl Milan, Kasper-Virchow Isabel, Hadaschik B.A., Grünwald Viktor Advances in Anatomic Pathology. Lippincott Williams & Wilkins. Vol. 30. 2023. P. 160-166