Differential Immunoexpression of Inhibitory Immune Checkpoint Molecules and Clinicopathological Correlates in Keratoacanthoma, Primary Cutaneous Squamous Cell Carcinoma and Metasta... oleh Anke S. Lonsdorf, Dominic Edelmann, Thomas Albrecht, Alexander Brobeil, Jannik Labrenz, Moritz Johanning, Richard F. Schlenk, Benjamin Goeppert, Alexander H. Enk, Ferdinand Toberer